A petcock is a small shut-off valve used to control the flow of liquid or gas. 5: Vacuum hose routing for the TCS. The NC30 and NC35 HRC manuals recommend a change to the fuel tap that removes. The intake vacuum line connects to the vacuum lines of the fuel pump and the petcock. This must be plugged too correct? mountainweldingcompany. In a conventional 4 cyl engine, 1 and 4 move together as pair, and 2 and 3 do same thing 180 degrees apart for balance. CAMSHAFT (S) TENSIONER. I pulled off the gas line from the petcock and attached a siphon line and placed one end in a bucket. My '02 petcock failed by 2004. This is the most common valve found in use today. , AUTO 16950-MA6-035 16951-MF5-015 : Unavailable : 5: SCREEN SET, FUEL STRAINER 16952-MA6-005 : Unavailable : 6: TUBE, VACUUM 16952-ME4-000 : Unavailable : 7: COVER SET, PETCOCK 16953-449-751. Feb 27, 2017 · I have read a Banshee Petcock will replace the 80s vacuum operated mess. you can suck on the vacuum line and see if fuel come out. As your demand for fuel rises during acceleration, the vacuum from the carbs pulls fuel down through the fuel lines. Vacuum hose routing is shown in this diagram. The Pingle cutoff valve #4321-CH (this is the petcock replacement not the in line vacuum cutoff) replaces the stock petcock and the synthetic in tank filter. Seeing its from another forum I will not post the link. FUEL PUMP for SF50 has been discontinued, so please use this. V-Twin Manufacturing Petcock Valve Body Vacuum Bypass Kit - 35-0426 Part #: 1801279 Mfg Part #: 35-0426 $ 19. #3 · May 20, 2009. Sep 08, 2021 · If your removing the petcock, your right in there anyways. May 03, 2010 · RE:does anyone has an 08 ninja 250 vacuum diagram Hi I've been searching for a vacuum diagram for an 08 ninja 250 with no luck, so Im hoping that one of my fellow riders in this forum has one. Letter "C" on the 2nd diagram. Aug 13, 2015 · The problem I am seeing is that when bike is off there is still vacuum in the system which keep petcock open. 5 out of 5 stars. The 320-0019 is the regular petcock with a larger base plate so it can have mount bolts the right distance apart to fit where a vacuum petcock goes. Fuel Tank Frame Sh300a7 2007 Sh 300 Scooter Honda Motorcycle. Post by klaywerks onJul 13, 2016 at 2:00pm. 82 GPz750/KZ750R1 82 KZ1100A2. Vacuum operated fuel tank petcock valve shut off for carburetor models only. All Products Boiler Feed Pumps Centrifugal Pumps Condensate Return Pumps Control Panels High-Pressure Pumps Stainless Steel Series Standard Elevated Pumps Sump Pumps Vacuum Pumps Water Treatment Custom Products. #4 · Sep 13, 2011. Made for todays fuel. Usually vacuum petcocks fail because the diaphragm gets split and/or the vacuum line to the petcock gets disconnected or splits. Thank you,. Chaa, this can be confusing. Blue Fox said: Nice diagram, Allan. From that T a line will run to the vacumn petcock. A vacuum leak is caused by extra air introduced into the fuel/air mix produced by the carburetors, which will lean out the mixture and cause poor running conditions. When purchased the bike started up instantly without choke and drove great at highway speeds for about an hour and shifted fine through all the gears. Appreciate anything you have, Dan. There are 2 overflow lines that connect top the 3 way valve, just behind the carb's (hose #36 & 39), and one line that runs into that little black plastic box (not even sure what that thing is) Then there is a large hose that connects the right side of the. Then disconnect the vacuum line from the petcock. Petcock Operation. 3,999 Posts. On and reserve and off will work as before you just won't need vacuum. Inactive Member. *NOTE: Nylon filter screen and nut are not included, must order seperately. com Supporter Top Contributor. I'm thinking the vacuum hose(s) weren't put in correctly after the desmogging. 150cc Fuel Petcock Assembly, Vacuum operated. 43 (10 new offers) 22mm Filtered Petcock 90 Degree Elbow Fuel Shut Off Valve Replacement for 62168-81 Fit for Harley Davidson 1975-2006 For Use with 1/4" ID Fuel Hose - Chrome Plated - Motorcycle Chopper Bobber 22/90. Very simple:right carb Vacuum blocked,Left carb vacuum to petcock. Suzuki GT Fuel Tank Cap Seal. These threads go on forever, since the problem rarely gets solved. Dennis Kirk has been the leader in the powersports industry since 1969, so you can rest assured that we have your back when it comes to bringing you the best Petcock for your Harley-Davidson. Gasoline essential to the proper operation of your motorcycle is controlled by a “Fuel Control Valve” otherwise known as a “Petcock”. That would certainly be a cause for no vacuum! nb: the last shop STILL didn't hook up the new petcock like it was designed to be connected. Vacuum petcock is leaking and float is not stopping fuel flow. The vacuum shut-off is normally held closed by a spring. TANK SET, FUEL *NH1* (WL) (BLACK) 17520-MEM-680ZA. d) Fuel tank filler cap surround overfill drain line system (x1). Petcock connections Disconnect the petcock connections (I do usually it at the petcock) for the fuel line and the vacuum line. Then after a little more thought I figured the fuel petcock valve as I had experienced that problem on a previous bike. When vacuum from the intake manifold is applied to the smaller port (see pic below) the diaphragm lifts the valve seal off the seat and fuel flows (out the larger port. The valve is vacuum operated and with no vacuum, no fuel will pour out of the tank as long as it is in the "on" position. My petcock vacuum diaphram doesn't work well on the starter (engine shut off from no fuel, new battery, spins fine) I've replaced the line from the carb using good clamps and a vacuum gauge shows the vacuum from the carb is probably fine (the needle really jumps so it's hard to read). 1) Does the carburetor create the vacuum or is the vacuum created elsewhere and the carburetor requires the vacuum? 2) Would the vacuum tube on the petcock connect to the carburetor? Thanks, Steve. Oct 06, 2013 · Oct 7, 2013. #8 · Apr 15, 2010. 2002 ford f150 vacuum hose diagram. This will allow greater access to the fuel line at both the petcock and carburetor. I sure hope it's only that little o-ring. $65 apiece. Instead it has a vacuum operated diaphragm that opens the fuel flow via a pulse hose from the carburetor when the engine is running. The original configuration of the breather hose came from the bottom of the tank (other side of petcock from the overflow) to a T fitting, two hoses came off that and. The petcock can be taken apart and cleaned. But here are the pictures. Fuel goes to port on the left side of the carb, plugs in horizontally right above the top lip of the float bowl (within. Either the diaphragm gets a hole in it and shuts off the fuel or the vacuum hose comes loose. pnkrckr0915. Vacuum type petcocks use rubber diaphragms and components that can tear or deteriorate, causing them to leak. gggGary, Sep 1, 2014. Where do the Fuel tank petcock gas line and vacumn hose go on the carbureters on a 1982 Kawasaki GPZ 550 H1 Canada. Fuel Vacuum Petcock Fits Suzuki GT380 GT550 GT750 (Fits: Suzuki GT380) $15. The problem is that you have to use large hose to fit the Petcock and then really clamp it down on the carb. It was prepared because of the trillions of threads involving the petcock that appear here, and the try-this try-that approach that some people use. The parts diagrams shown on Bike Bandit does not show any parts for my 77 Yamaha 750. 26 (2) At Dennis Kirk, you will find the best selection of Harley-Davidson Petcock. 05-25-2009, 06:27 PM. These threads go on forever, since the problem rarely gets solved. From the petcock to the carb, there are two lines coming out of the petcock one top (center of the petcock) and one at the bottom of the petcock. - Answered by a verified Motorcycle Mechanic. I have also read the LT 160 petcock fits and has a hose fitting that matches the 80s carb. When the throttle is open wide and manifold vacuum is low and rpm is high the fuel pump assists to keep the wipers going. Joined May 23, 2008. #2 · Aug 12, 2016. The distance between the body and the mount flange is about 1/4 more. This would be on a vacuum operated petcock. or Best Offer. Power-Flo™ 6000 Series Single Outlet Reserve Vacuum Fuel Valve by Pingel®. It goes to the petcock/fuel valve. Posted: (5 days ago) 2. There is also the potential for the vacuum line that comes off the VT's engines rear cylinder to crack. Connect this nipple on the intake manifold…. This is made by Show Chrome and is designed to replace all of the parts in the petcock that wear out or crack from age. FUEL SWITCH VACUUM PETCOCK FOR GY6 50CC - 150CC ENGINE ATV GO KART MOPED SCOOTER. Okay people! This petcock/fuel valve is from a 2007 Kymco People 2T 49cc scooter. Made for todays fuel. A petcock is a small shut-off valve used to control the flow of liquid or gas. 1; 2; Next. If this is the problem you're better off finding a new petcock that doesn't use the vacuum lines and just plug it off on the carbs. edit: The gas is flowing from the petcock, through the vacuum line, to the carb. There are 2 overflow lines that connect top the 3 way valve, just behind the carb's (hose #36 & 39), and one line that runs into that little black plastic box (not even sure what that thing is) Then there is a large hose that connects the right side of the. The petcock partially disassembled. Vacuum operated fuel tank petcock valve shut off for carburetor models only. But here are the pictures. FUEL VALVE PETCOCK. * A fuel line going to the carburetors. unread, Apr 14, 2001, 12:18:09 AM 4/14/01. Joined Jun 26, 2017 · 64 Posts. On the US model, either 1&4 or 2&3 are connected and go to the vacuum canister on top of the valve cover. Purchase the v twin manufacturing vacuum petcock by pass kit at j p cycles your source for aftermarket motorcycle parts and accessories with free everyday tech support. It's just around the corner at the front of the Carb. Premium Honda Replacement Vacuum Actuated Gas Fuel Tank Fuel Petcock/Auto Fuel Valve Assembly with Sediment Bowl for 1983 GL650 Silver Wing. 5mm from closet edges. Roughhouse 50cc Scooter Wiring Diagram Wiring Diagram. 2014 taotao atm 50 fuel and vacuum. 3 7 out of 5 stars 16. Also, a vacuum line from the air filter connects to the left front side of the carburetor. All the original vacuum lines were good, and you end up with extra when complete. It probably includes: * A switch with positions for On, Off and Reserve. If you are doing that then just cap all vacuum nipples. Can of starter fluid. 150cc Scooter Fuel Line Diagram Auto Electrical Wiring Diagram. Vacuum feed fuel valve used on American Sportworks Go Kart Model #6150, 6151, 6152, 7150 and 200 Series LUTV's: 2009 - 2012 Models only. 5mm center to center screw holes- Center pin = 10mm x 6. You're correct on the vacuum function of the petcock. The purpose of the vac petcock is to close off the fuel when the engine stops from lack of vacuum. Fuel Gas Tank Petcock for Honda Motocycle CM400T 1981 1980 1979 1978. This is a good safety feature but the vacuum diaphragm has been known to get stuck making starts impossible. edit: The gas is flowing from the petcock, through the vacuum line, to the carb. There is another vacuum hose that goes on to the petcock valve that comes up from the bottom somewhere tnat I haven't checked yet but it is there as well. To ask your question go here http://www. Get free shipping, 4% cashback and 10% off select brands with a RPM Membership, plus free everyday tech support on aftermarket Harley-Davidson Petcock Components & motorcycle parts. there are 2 vac lines coming from the intake manifold (in between carb and engine) One of these lines goes to the carb. Fuel Vacuum Petcock Fits Suzuki GT380 GT550 GT750 (Fits: Suzuki GT380) $15. You should have one vacuum line going from the fuel petcock usually to the intake manifold. I'm thinking the vacuum hose(s) weren't put in correctly after the desmogging. So you avoid starting the bike with a filled cylinder and doing significant damage to your bike. Baraboo, WI, USA. what would cause the slide to not move, looking at diaphram and no obvious splits , virago 250. I have the fuel line in and out, the topside vacuum line but not the other vacuum. 1; 2; Next. The pieces began clogging various orofices in the petcock assembly. on a 800 carb, there's #1) fuel line, #2) vacuum line to petcock, #3) carb bowl air vent line to outside air, #4) stock catch bottle for accumulated airbox oil, #5) crankcase breather tube to. Manifold needs a vacuum line to the petcock. I pulled off the gas line from the petcock and attached a siphon line and placed one end in a bucket. 5mm Mounting Holes 46mm center to center Qty: 1 pcs The petcock has 2 outlet ports and will fit either right or left side. TANK SET, FUEL *NHA45M* (WL) (PORTLAND GRAY METALLIC) 17520-MEM-680ZE. I haven't owned a carbed bike in a while so forget which is run and stop. All times are GMT - 4 Hours. The spring, by this picture and the explanation put with it just moved the spring. Vacuum operated fuel valves can contribute to MANY different problems that you may face with your carbureted Honda motorcycle. May 09, 2016 · Open the petcock again, then the radiator cap and allow the water to drain out of the cooling system into the drain pan. Run a single long. # Item Price Suggested Qty The number of times each part appears in the diagram. The VOES will be inop then. This is what allows the fuel to flow through the petcock. We hope that these diagrams will make it easier for you to figure out what goes where and to put your cycle back together more efficiently. d) Fuel tank filler cap surround overfill drain line system (x1). These are vacuum operated, ment to only allow fuel flow when there is vacuum present- ie the engine is turning. ON gives you fuel from the main (15) inlet; RES gives you fuel from the reserve inlet (14); and OFF lets the fuel balance between the two inlets. The Red is the fuel line connection from the petcock to the carb. Jump to Latest Follow 1 - 4 of 4 Posts. For Carbureted Models Only. Baraboo, WI, USA. AIR CLEANER (airbox) 2. A friend just went through an eerily similar set of circumstances on his 2000 FXR4 and it's petcock. United Brass Works is a manufacturer of high quality bronze, ductile iron and carbon steel valves for a variety of applications. My petcock vacuum diaphram doesn't work well on the starter (engine shut off from no fuel, new battery, spins fine) I've replaced the line from the carb using good clamps and a vacuum gauge shows the vacuum from the carb is probably fine (the needle really jumps so it's hard to read). Hoses Disconect the hose running to the charcol canister (California models, if so equipped). Still available from some aftermarket suppliers for about $23. Home / Scooters / 150cc Scooter. I'm almost positive the one that actually sticks off of the back of my petcock is a vaccum line that runs to the carbs. Hoober has links to parts diagrams for Case IH, Kubota, JCB, Great Plains, Landpride, MacDon, Kinze and Agco. There is the fuel hose that goes to the carb, a vacuum hose that goes from the vacuum side of the carb to the petcock, and a single vent tube off of the tank and a vent line off of the carb. Forum 1981 Virago XV750 Vacuum Line Diagram. This will allow greater access to the fuel line at both the petcock and carburetor. Vacuum operated fuel tank petcock valve shut off for carburetor models only. IMHO not worth it rebuilding, also be sure to check vacuum and fuel lines for wear, holes, and cracks, if in doubt replace them. I like using polyurethane fuel line for the vacuum hoses. a real pain is the the vacuum fuel pump on rhino trying to pull gas upwards from aways and keeping carb bowl full, also draining back. Tank Petcock Settings The stock petcock uses a vacuum assist so that it doesn't flood the carburetor and engine should the carb float get stuck. Add to Cart. Well to anyone that has a Canadian model. This must be plugged too correct? mountainweldingcompany. 6,806 Posts. They used to mark the positions right on the petcock itself. 5" more or less) The picture above with a line going over the top of the carb is more common to the 150cc setups. You can open the lower petcock. The stock LT80 petcock is a bit of a mystery to many owners. ok not 100% sure on how the vacuum lines run on my 82 xj1100 petcocks when I got it had one line capped off and the other was running to the carbs and then I noticed that 2and3 carbs had a hose off the back of them both and the boost module was not hooked up nor was the vacuum hooked to it and where normally the vacuum line goes into the casing it was plugged and not in use so I can tell that. Complete vacuum slide assembly for Harley CV carburetors. Yamahafan is right on the mark; the carbs will hold a 1/2 pint or so of fuel. When I did a closer inspection of the faulty petcock, I saw that the o-ring on the vacuum operated plunger, part number 670 in this diagram. In the first picture it is the hose that the number 3 seems to be resting on. Anyone know where the vacuum hose that runs from the stock fuel petcock hooks up to: Does it hook to the Carb vacuum hose or does it hook to the intake manifold vacuum hose?. -This product is also compatible with SF50, SF50R. Purchase the v twin manufacturing vacuum petcock by pass kit at j p cycles your source for aftermarket motorcycle parts and accessories with free everyday tech support. Step 8: Dispose the old coolant. This would be on a vacuum operated petcock. I have a 77 Yamaha 750 with petcocks that have vacuum lines going to the carbs. I pulled off the gas line from the petcock and attached a siphon line and placed one end in a bucket. I actually can see that the vacuum line had a kink in it where it exits under the big frame tube and connects to the petcock. This valve is characteristically located at the bottom of the fuel tank and can have a number of different configurations. This petcock is a great replacement for the vacuum type used on 1978 - 1984 XS650 and other Yamaha models that utalize vacuum type petcocks. ) When the petcock is in the ON or RES positions, fuel flow is held "off" by a spring-loaded diaphragm seal. the petcock and carburetor. (If I remember right it was the bottom conection on the petcock) The fuel line should run directly to the gas bowl on the carb. Join Date: Jun 2007; Posts: 64; Share Tweet #2. 4 8 out of 5 stars 11. The purpose of the vac petcock is to close off the fuel when the engine stops from lack of vacuum. 5mm overall length. Gy6 50cc fuel vacuum line diagram page 6 schema wiring diagram gy6 150cc fuel diagram best wiring library 50cc gy6 carburetor diagram gy6 50cc scooters and up. The two nipples nearest the engine are vacuum ports for two hoses that run to a tee, with a single hose that runs to the CAS system,or Air Suction System,a vacuum operated dashpot located above the valve cover,between the coils,under the frame tube,it has three black 3/4" air hoses running to it with. Another thing you can/should try - When you have the petcock assembled and on your gas tank - pull all 3 gas lines off - leave the line to the vacuum fitting on the petcock, then gently suck on that vacuum line - you should get good, steady flow from all 3 gas lines when you have the lever turned to "on" or "reserve". one day i saw a fuel stain on the starter clutch cover. (6) 6 product ratings - Petcock 04-09 GS500 F Fuel Gas Petrol Valve Tap OEM Suzuki 44300C01D40J000 #V113. Craftsman 919152921 air compressor parts - manufacturer-approved parts for a proper fit every time! We also have installation guides, diagrams and manuals to help you along the way!. A quick video to answer the question, where do you attach the tank lines. It's not supposed to pull gas through the vacuum line. Then you have to apply a gentle vacuum to the vacuum port on the petcock. Take a look at any of the parts diagrams online and pick up replacement flat rubber seals for that filter screen before taking things apart. Plus we have a no-hassle return policy, so you can shop with complete confidence at Dennis Kirk!. BRAKE PEDAL TORQUE LINK 3. Made for todays fuel. com » Tech Help » 85 xv700 vacuum lines (SOLVED) Generated using printer-friendly. The Cyclepedia Press LLC Yamaha XV250 Virago and V Star 250 online service manual features detailed full-color photographs and wiring diagrams, complete specifications with step-by-step procedures performed and written by a veteran Yamaha dealer trained technician. An alternative to replacing the entire fuel petcock assembly when your GL1500 Goldwing decides to start leaking fuel. In this video I go over 3 diff. It runs from the vacuum port on the #3 cylinder (between the carburetor body and the engine) up to the smaller connection on your petcock. One petcock just requires a splitter and two pipes to feed the carbs. 3,999 Posts. I have a nasty cutout and surge at about 60% throttle and up. vacuum eoualizer line stripper column artificial leak petcock access hatch vacuum gauge hot-oil flow lines spent mash re-boiler to discharge pump return line reflux zone mash line 8" thinwall tubing 6" thinwall tubing rectifier column sight glass bottom return pump from mash feed pump kinney vacuum pump cold water in excess water catch tank. Then disconnect the vacuum line from the petcock. If either or both of these tests fail, the diaphragm in the octopus could be dirty or bad. In the diagram attached 35 is the fuel cock and 23 is the fuel pump. This would be on a vacuum operated petcock. Buy chinese scooter gas hose fuel line 4 stroke gy6 50cc 150cc moped atv buggy dirt. Gy6 50cc fuel vacuum line diagram page 6 schema wiring diagram gy6 150cc fuel diagram best wiring library 50cc gy6 carburetor diagram gy6 50cc scooters and up. the forth one will be a vacuum line nothing will come out untill the vacuum opens the diaphragm inside it i think the vacuum line runs to the carb My 250GT petcock never worked properly and it would flood when on the side stand. 95 (2) Drag Specialties Petcock Rebuild Kit - 0705-0099 Part #: 185275. I can't find any diagrams online, so please help if you can. Plus there's a second t-joint near where the petcock lives. SUZUKI GT Fuel Tank Band. The original configuration of the breather hose came from the bottom of the tank (other side of petcock from the overflow) to a T fitting, two hoses came off that and. 75 54 27587-88 SCREW 1 1. 1; 2; Next. Suzuki GT BRAKE MASTER CYLINDER REPAIR KIT, 59600-45821 $51. Made for todays fuel. We carry more Harley-Davidson products than any other aftermarket vendor and have them all at the lowest guaranteed prices. 3 7 out of 5 stars 16. That is the only way I can think of fuel flowing without vacuum being applied. vacuum petcock | Harley Davidson Forums This winter, I put a Pingle fuel valve in place of the stock vacuum fuel valve and stuffed a screw in a short piece of hose on the vacuum tube from the CV carb. The Pingle cutoff valve #4321-CH (this is the petcock replacement not the in line vacuum cutoff) replaces the stock petcock and the synthetic in tank filter. Is that right? I can't find a diagram and I'm hoping like hell it's the problem, because I can't get the bike started up. It will automatically turn off the petcock when the engine is not running. An engine may fill with gas if the vacuum fuel pump or vacuum fuel petcock fails, allowing gas to flow through the vacuum line into the engine intake. Odds are that your petcock does not have a "off" setting, since it originally relied on the vacuum system to turn it on and off. Scooterpartsco. Compared to the progressive control of a gate valve a ball valve style petcock's is coarse, confining their use principally to on-off applications. 8 in of Hg on your diagram specific to the CBR250RR MC22 petcock or for all vacuum petcocks? While I wait for parts I agree with you that flow testing the petcock would be a good idea. So you avoid starting the bike with a filled cylinder and doing significant damage to your bike. Lucy Suzuki must have know it was going to happen as there was a drain bung on the crankcase. hose to the VOES and plug the other end. Jump to Latest Follow 1 - 4 of 4 Posts. My 92 1100 with mikuni bst36ss slingshots has two fuel lines plus a vacuum line from the 3rd carb counting from the left as if you were sitting on the bike that goes onto the petcock valve. 02 , first remove the fuel line and the spring, remove the vacuum line and place the spring around the vacuum line and use it for the fuel line as the old one is too short, put a cap one the vacuum from the carb, I. Vacuum operated fuel tank petcock valve shut off for carburetor models only. Where do the Fuel tank petcock gas line and vacumn hose go on the carbureters on a 1982 Kawasaki GPZ 550 H1 Canada. Posted by Dennis Williams on 8th Jul 2019 Got it fast and it works great. Front outlet of petcock facing the front of the bike is hooked up to the bottom of carbs 3-4 (counting carbs from left to right) and rear of the petcock outlet is hooked up to the rear of bike. Made for todays fuel. I ordered a rebuild kit but after installing it, the leak was still there. It's not supposed to pull gas through the vacuum line. FUEL PUMP for SF50 has been discontinued, so please use this. Step 3, attach everything together, simply bolt on the new petcock from a yamaha Vmax 700. Two hoses come from the gas tank (one is for the reserve area of gas tank, the other for regular supply), the other two hoses come out of the carb. This will allow you to plug your vacuum line and have a constant flow petcock. The vacuum diagram shows the different vacuum controlled devices and how they interconnect. Make sure you have a catch pan handy when you remove the fuel line. I actually can see that the vacuum line had a kink in it where it exits under the big frame tube and connects to the petcock. It is now just unconnected and laying down back next to the shock adjuster. 5mm from closet edges. (3) 3 product ratings - Pingel Chrome Vacuum Petcock Fuel Valve Hex Body Outlet Facing Outward 1311-CHV. Rebuilding Yamaha Vacuum Operated Fuel Valves (Petcocks. Premium Honda Replacement Vacuum Actuated Gas Fuel Tank Fuel Petcock/Auto Fuel Valve Assembly with Sediment Bowl for 1983 GL650 Silver Wing. KZ305B LTD Belt (vacuum, Calif. The e line is very important it is the main vac supply. I'm not new to ATV's, 2 strokes, or. These threads go on forever, since the problem rarely gets solved. You may not need to work on the carbs again. Willys Year: 1957. When purchased the bike started up instantly without choke and drove great at highway speeds for about an hour and shifted fine through all the gears. For Carbureted Models Only. This means that they have a little diaphragm and valve set-up in them which responds to engine vacuum and allows fuel to flow only when the engine is running and. Add to Cart Fuel Petcock Assembly - Fits M14 x 1. Gopowersports has serviced the go kart industry since 1974. All times are GMT - 4 Hours. It's found on the carbs with vacuum lines running from the rack of carbs up to the petcock. one day i saw a fuel stain on the starter clutch cover. When vacuum from the intake manifold is applied to the smaller port (see pic below) the diaphragm lifts the valve seal off the seat and fuel flows (out the larger port. It is my understanding that when you shutoff the bike there shouldnt be anymore vacuum in the petcock line allowing it to close proper in order to block the gas from leaking,. TANK SET, FUEL *NHA45M* (WL) (PORTLAND GRAY METALLIC) 17520-MEM-680ZE. On and reserve and off will work as before you just won't need vacuum. The switch is connected to a lead from the ignition module. Also replace the two small O-rings on the bolts for the petcock part# 92022. This must be plugged too correct? mountainweldingcompany. Joined Mar 28, 2009 · 171 Posts. , AUTO 1695. In this video I go over 3 diff. Lift the seat and disconnect the fuel line from the pump to the carb,try to start I have a Suzuki King quad cc and had all those same. thejunkmanadv. I haven't owned a carbed bike in a while so forget which is run and stop. Made in Japan. There wasn't a spring behind the vacuum shut off diafram. But that was not required for the P mod, it just has more wear on it from removing the tank. Jul 01, 2014 · Re: vacuum fuel valve. If the petcock works like stated above, then it's not the start problem. These threads go on forever, since the problem rarely gets solved. This will fit all Goldwing GL1500's from 1988-2000. If it is a vacuum operated petcock, it will have a square plate on the backside with four small screws holding it on. This would be on a vacuum operated petcock. the forth one will be a vacuum line nothing will come out untill the vacuum opens the diaphragm inside it i think the vacuum line runs to the carb My 250GT petcock never worked properly and it would flood when on the side stand. When the engine is shut off, the fuel flow is shut off. Front outlet of petcock facing the front of the bike is hooked up to the bottom of carbs 3-4 (counting carbs from left to right) and rear of the petcock outlet is hooked up to the rear of bike. Very simple:right carb Vacuum blocked,Left carb vacuum to petcock. Take the screws out and carefully remove the plate. But that was not required for the P mod, it just has more wear on it from removing the tank. Forum 1981 Virago XV750 Vacuum Line Diagram. Historically, petcocks were threaded valves controlled by a butterfly handle; [citation needed] modern petcocks are typically ball valves. Home / Scooters / 150cc Scooter. Download Yamaha Virago 1100 petcock carb problem' '1982 virago 750 vacuum lines diagram drcool de may 13th, 2018 - read and download 1982 virago 750 vacuum lines diagram free ebooks in pdf format the. Now that you have the vacuum diagram for your vehicle, you can start troubleshooting for a potential vacuum leak. This means, depending on the configuration of your engine, gasoline can even fill up to the valves. Vacuum operated fuel tank petcock valve shut off for carburetor models only. Add to Cart. * A fuel line going to the carburetors. with a manual petcock you avoid the possibility of hydro locking a piston when the vacuum does not shut down and the cylinder and it fills with fuel-. The side on the right carries the vacuum from the engine to the petcock diaphragm. #13: July 28, 2014, 02:15:43 AM. 1; 2; Next. On and reserve and off will work as before you just won't need vacuum. Fuel Petcock Diaphragm - Double Layer Rubber Diaphragm approximately 27. ATV Fuel Gas Filter+Hose Line+On Off Valve Switch for 50cc 110 250 Pit Dirt Bike (Fits: Suzuki GT380) $11. If the vacuum petcock has been modified to work as a manual one,,be sure you block off the port on the right side carb where the vacuum line would have been connected. Used on all Hammerhead 150cc & GT250. Okay people! This petcock/fuel valve is from a 2007 Kymco People 2T 49cc scooter. , AUTO 1695. Tank Petcock Settings The stock petcock uses a vacuum assist so that it doesn't flood the carburetor and engine should the carb float get stuck. a) Main fuel feed lines (x2) from fuel petcock to carb fuel inlet rails. Step 3, attach everything together, simply bolt on the new petcock from a yamaha Vmax 700. Jul 13, 2009 · Line from #4 cylinder sync port to petcock vacuum port, plus the other 3 sync port holes. Quantity; 6: PETCOCK ASSY. Newer vehicle models depict the components resemblance and their location. Rebuilding Yamaha Vacuum Operated Fuel Valves (Petcocks. Gopowersports is truly your only one-stop-shop for all your go kart parts needs. Sep 12, 2011 · Premium Member. Yes, the CX vacuum petcock has two nipples pointing to the right side of the bike, not down,, it sounds like your petcock may be off of another type. Blue Fox said: Nice diagram, Allan. 4-) As you said, let it hang. it is different from original - the anchor holes line up on the tank perfectly but the diaphragm on the new on is slightly smaller than the original - and the rubber gasket on new petcock is just a hair too large for the original petcock, so much so that i'd have to splice it, defeating the purpose of. When the engine is turning vacuum is applied to this thinner line and allows fuel to run from the tank into. Newer vehicle models depict the components resemblance and their location. Ships in 2 to 3 days. Vacuum operated fuel valves can contribute to MANY different problems that you may face with your carbureted Honda motorcycle. If you completely remove the unit, fuel will flow out pretty fast. I am wondering of this petcock will fit my petcocks. I have loked EVERYWHERE on the scooter for where it might go. It has no off position rather just on-reserve and prime. A correctly operating petcock on the Valk will only allow fuel to flow when vacuum is applied (Small hose attached) no matter what position the petcock is in. Glad petrol was cheep back in the 70's. That is cheaper than just a kit for the oem. Connect a drain hose from the petcock fuel outlet to a gas can or other container. Aug 23, 2013 · Some Japanese bikes have a vacuum petcock, you need vacuum to open the petcock; this is a 1995 and H-D didn't do that until 1996 or 97. 22mm Filtered Petcock 90 Degree Elbow Fuel Shut Off Valve Replacement for 62168-81 Fit for Harley Davidson 1975-2006 For Use with 1/4" ID Fuel Hose - Chrome Plated - Motorcycle Chopper Bobber 22/90. :) Part #23f-24500-11 it has on/off/res and cost $16. It can be plugged or bad. -This product is also compatible with SF50, SF50R. I wouldn't go into the carbs until the petcock is fixed and a test ride done. Petcock Repair Kit For Vacuum Style With Drain Plate On Tap Bottom. 23 is the o-ring. Vacuum type petcocks use rubber diaphragms and components that can tear or deteriorate, causing them to leak. When the engine is running, a 'vacuum' exists in the intake manifold (which is what sucks the air into the engine) and this vacuum is also used to open the petcock. i can take. Choose Options. The side on the right carries the vacuum from the engine to the petcock diaphragm. Chaa, this can be confusing. what would cause the slide to not move, looking at diaphram and no obvious splits , virago 250. Guy had the carbs off. Power-Flo™ 6000 Series Single Outlet Reserve Vacuum Fuel Valve by Pingel®. It can be plugged or bad. Complete vacuum slide assembly for Harley CV carburetors. the petcock and carburetor. 43 (10 new offers) 22mm Filtered Petcock 90 Degree Elbow Fuel Shut Off Valve Replacement for 62168-81 Fit for Harley Davidson 1975-2006 For Use with 1/4" ID Fuel Hose - Chrome Plated - Motorcycle Chopper Bobber 22/90. These things are notorious for giving problems. Why not just fix it right and replace the petcock , if the diaphragm is shot ( which I doubt happens very often ). All times are GMT - 4 Hours. Fallowing is what i found; It started leaking the day after i fille. Never had a problem with my vacuum petcock because it is the vacuum type, but have had to rebuild it 3 times already due to ethanol damage. Letter "C" on the 2nd diagram. When putting bike back together, I connected hose from carb to petcock. Free shipping. I think its a vacuum petcock. Jump to Latest Follow 1 - 5 of 5 Posts. One petcock just requires a splitter and two pipes to feed the carbs. Rebuilding Yamaha Vacuum Operated Fuel Valves (Petcocks. Blue Fox said: Nice diagram, Allan. When purchased the bike started up instantly without choke and drove great at highway speeds for about an hour and shifted fine through all the gears. btom · Registered '05 800B Joined Mar 15, 2016 · 2,221 Posts #2 · 5 mo ago. This could also be your problem. The 2 brass ports on the inside of the carbs are the float bowl vents and do not connect to anything and are not covered. The vacuum operated petcock opens immediately for full flow on the first stroke of the engine, so there is no difference in flow rates between the two petcocks. Feb 27, 2017 · I have read a Banshee Petcock will replace the 80s vacuum operated mess. OEM References: 44300-44010- 44300-44011. Service Manuals,not Owners Manuals OK, your carb number system is correct,left to right,1234. That is the only way I can think of fuel flowing without vacuum being applied. As your demand for fuel rises during acceleration, the vacuum from the carbs pulls fuel down through the fuel lines. anybody have an digram of how to rebuild petcock. Or at least I don't recall how they were before I took 'em out. The petcock on the 450 is vacuum operated. This must be plugged too correct? mountainweldingcompany. Posted: (5 days ago) 2. Make sure that your vacuum line is re-connected to the proper port on the petcock, or just cap it off with a vacuum cap. If your fuel hose enters on the side of the carb (D),,someone probably put a set of carbs on from an older CX that did not have the vacuum petcock (1980 and older). I have a nasty cutout and surge at about 60% throttle and up. DandyDan wrote:In the stock setup, you'd have the gas line running to the petcock, another gas line running from the petcock to the carb and then a vacuum hose running to the petcock from the intake manifold (between carb and cylinder). 2336 Answers. The PO replaced the petcock with a NON-Vacuum version. There is another vacuum hose that goes on to the petcock valve that comes up from the bottom somewhere tnat I haven't checked yet but it is there as well. It runs from the vacuum port on the #3 cylinder (between the carburetor body and the engine) up to the smaller connection on your petcock. If you completely remove the unit, fuel will flow out pretty fast. Baraboo, WI, USA. Manifold needs a vacuum line to the petcock. OEM References: 44300-44010- 44300-44011. Nov 20, 2014 · You can replace a vacuum petcock with a manual one on a scooter. The fuel line is the other line coming off the petcock. Joined Mar 21, 2004. HyosungSource. I don't see any vacuum line to crack case when I look through the side of the bike so it would be safe to say that the bike isn't a California model. Roughhouse 50cc Scooter Wiring Diagram Wiring Diagram. The switch is connected to a lead from the ignition module. It's found on the carbs with vacuum lines running from the rack of carbs up to the petcock. Check the vacuum hose that comes off the back of the carburetor and runs to the VOES switch and the petcock. A vacuum leak is caused by extra air introduced into the fuel/air mix produced by the carburetors, which will lean out the mixture and cause poor running conditions. It is now just unconnected and laying down back next to the shock adjuster. This is the lowest “safe” level for the oil system. b) Vacuum line connection between the vacuum source (engine) and the fuel petcock. it doesn't matter which one but the factory usually hooked them up to carb #2. Now, with the vacuum line still attached to the petcock, suck on the line. * A fuel line going to the carburetors. Not replacing everything? You may need fewer than suggested. Start engine, how much vacuum is at petcock? Idle and run it for a while. 2336 Answers. Check the vent line at the back bottom right side of the gas tank. The Vacuum Line is usually connected to the lower nipple on the Fuel Valve on most models. Post by 90GTVert onFeb 14, 2010 at 5:02pm. Suzuki GSX-R750 GSXR 750 Illustrated Parts List Diagram Manual 1991 1992. The petcock on the 450 is vacuum operated. As for the petcock, looking at the diagram and your explaination, the o-ring that is part of the diaphram, I don't think that is sealing correctly. When the engine is running, a 'vacuum' exists in the intake manifold (which is what sucks the air into the engine) and this vacuum is also used to open the petcock. The petcock is easy enough to test, apply suction to the vacuum line use a syringe or pump, a mouth will work too, but if the diaphragm is leaking who ever you fooled into sucking it will not be happy and once the valve is open just watch the fuel flow rate into a jar. As for the petcock, looking at the diagram and your explaination, the o-ring that is part of the diaphram, I don't think that is sealing correctly. This is a very simple procedure detailing how to restore a petcock without having to purchase any new parts. When vacuum rises beyond a certain pressure, the switch opens and allows/”tells” the ignition to advance. Take the screws out and carefully remove the plate. An engine may fill with gas if the vacuum fuel pump or vacuum fuel petcock fails, allowing gas to flow through the vacuum line into the engine intake. In the diagram attached 35 is the fuel cock and 23 is the fuel pump. Joined Nov 12, 2009. I put a roll of electrical tape next to it for size comparison. (click on image for a larger version) A problem often found when racing an NC30 or NC35 is fuel starvation. Three are fuel lines and one is a vacuum line. Made for todays fuel. On the US model, either 1&4 or 2&3 are connected and go to the vacuum canister on top of the valve cover. One goes to the bottom of the vacuum petcock. Here is a picture compliments of Allan showing how the vacuum petcock hooks up. The petcock is what the fuel flows through when it comes out of the gas tank. As Charlie said - that carb should have an "extra" brass tube that faces inward and upward and that is where you attach the line from the petcock. It is not unusual for a vacuum operated petcock to be replaced with a high flow petcock and the end of the vacuum pipe to be plugged with a screw Best thing to do would be to replace the vacuum pipe with a single pipe from carb to voes and eliminate the t Brian fin_676, Oct 19, 2014 #4. When the engine is running, a 'vacuum' exists in the intake manifold (which is what sucks the air into the engine) and this vacuum is also used to open the petcock. The remaining line connected to the Fuel Valve is the Vacuum Line. Vacuum petcock diagram Vacuum petcock diagram. I also had 2 Honda dirtbike petcocks fail due to ethanol (melted the rubber parts) and they are not rebuildable, they are riveted together. In 1996, H-D went to a vacuum operated fuel petcock. As your demand for fuel rises during acceleration, the vacuum from the carbs pulls fuel down through the fuel lines. This engine is used on virtually all 125cc and 150cc 4-stroke Chinese and Taiwanese scooters from TaoTao, Baja, Icebear, Wolf, Bintelli, Roketa, Baotian, Sunl and many more. From the petcock to the carb, there are two lines coming out of the petcock one top (center of the petcock) and one at the bottom of the petcock. Petcock Rebuild Kits for Japanese Motorcycles. 5mm from closet edges. Packing Contents: 1 X Auto Fuel Valve Assembly Part Number: HPCA-010ES. what would cause the slide to not move, looking at diaphram and no obvious splits , virago 250. This will allow greater access to the fuel line at both the petcock and carburetor. ) When the. ) Vacuum Operated. I assume that is NOT the way a vacuum operated petcock is supposed to work. Well to anyone that has a Canadian model. DOLFAN That's supposed to be connected to the tank's fuel petcock - the prime hose. When the engine is shut off, the fuel flow is shut off. There is also the potential for the vacuum line that comes off the VT's engines rear cylinder to crack. anybody have an digram of how to rebuild petcock. Post by 90GTVert onFeb 14, 2010 at 5:02pm. In this video I go over 3 diff. jennifer davey says: June 19, 2021 at 12:06 pm. I got them cleaned out, and bought/picked most of the missing parts that were needed. Aug 13, 2015 · The problem I am seeing is that when bike is off there is still vacuum in the system which keep petcock open. CARBURETOR 3. Step one, remove the offending petcock: Step 2, finger out a way to route the new hoses, combine the twin hoses from the tank and install ^^ I used a 5/16" brass tee to couple the twin lines from the tank, which in turn flows to the petcock. The diagram in thread #3 is for the SF with an octopus. Posted by Dennis Williams on 8th Jul 2019 Got it fast and it works great. 1,256 Posts. How to bypass the vacuum system on your cv vacuum fuel valve. Then you have to apply a gentle vacuum to the vacuum port on the petcock. Inline fuel valve is ideal for use on ATVs or other vehicles where an inline fuel valve is necessary Features 1/4" pipe thread on one end and a 1/4" barb on the other. It doesn't matter which pair, but they must be matched because those cylinders fire the same. The fuel line off the petcock was split and replaced it. May 09, 2016 · Open the petcock again, then the radiator cap and allow the water to drain out of the cooling system into the drain pan. Part of what's confusing me is the location of the t-joint at the AVC. When purchased the bike started up instantly without choke and drove great at highway speeds for about an hour and shifted fine through all the gears. A petcock is a small shut-off valve used to control the flow of liquid or gas. Oct 7, 2013. Connect a drain hose from the petcock fuel outlet to a gas can or other container. NC30/NC35 Fuel Tap Vacuum Bypass. You should have one vacuum line going from the fuel petcock usually to the intake manifold. Anyone know where the vacuum hose that runs from the stock fuel petcock hooks up to: Does it hook to the Carb vacuum hose or does it hook to the intake manifold vacuum hose?. First, here's how it works:. 1 - 15 of 15 Posts. Search our inventory and get it shipped fast. Mid USA Vacuum Petcock Valve Bypass Kit - 80685 Part #: 189496 Mfg Part #: 80685 $ 9. Glad petrol was cheep back in the 70's. You should have one vacuum line going from the fuel petcock usually to the intake manifold. Easiest way to tell the difference is a vacuum petcock will have a small flat plate with a hose nipple that the vacuum hose hooks to. Petcock Rebuild Kits for Japanese Motorcycles. More Buying Choices. If you have to put it halfway between any setting for it to run, then it needs to be replaced. Petcock vacuum hose. The owner says the vacuum petcock is pumping fuel and then clarified that vacuum petcocks do pump fuel. I am having trouble with my stock vacuum petcock valve. In 1996, H-D went to a vacuum operated fuel petcock. Picture is the left carb body. The VOES adjusts ignition timing from idle to WOT, you wanna keep that function. pnkrckr0915. 8 in of Hg on your diagram specific to the CBR250RR MC22 petcock or for all vacuum petcocks? While I wait for parts I agree with you that flow testing the petcock would be a good idea. A petcock is a small shut-off valve used to control the flow of liquid or gas. 22mm Filtered Petcock 90 Degree Elbow Fuel Shut Off Valve Replacement for 62168-81 Fit for Harley Davidson 1975-2006 For Use with 1/4" ID Fuel Hose - Chrome Plated - Motorcycle Chopper Bobber 22/90. OE Replacement and Performance Parts for Chinese 150cc mopeds and scooters with GY6 engines. Vacuum type petcocks use rubber diaphragms and components that can tear or deteriorate, causing them to leak. I am wondering of this petcock will fit my petcocks. #13: July 28, 2014, 02:15:43 AM. or petcock hose to the carbu-retor. 0 OEM Ref # 367-24500-04 Note: Please Check that the Size Listed Above is Correct for your Bike before ordering. Feb 08, 2021 · The vacuum petcock is known to fail. It is my understanding that when you shutoff the bike there shouldnt be anymore vacuum in the petcock line allowing it to close proper in order to block the gas from leaking,. In the first picture it is the hose that the number 3 seems to be resting on. This information applies to most 50 125 150 and 250 cc scooters. I ordered a rebuild kit but after installing it, the leak was still there. If you have the F model, the petcocks are different. You should have one vacuum line going from the fuel petcock usually to the intake manifold. FUEL VALVE PETCOCK. 22mm Filtered Petcock 90 Degree Elbow Fuel Shut Off Valve Replacement for 62168-81 Fit for Harley Davidson 1975-2006 For Use with 1/4" ID Fuel Hose - Chrome Plated - Motorcycle Chopper Bobber 22/90. The company was founded in New York City in 1910 and. Can I just replace the factory petcock with an aftermarker one that doesn't use the vacuum fuel shut off ? They are only about $25. Ships in 2 to 3 days. We stock go kart parts for the following manufacturers: TrailMaster, BV Powersports, Hammerhead off road, Manco, American Sportworks, Carter, Yerf-dog, Thunder kart, Comet and Max-Torque. The VOES adjusts ignition timing from idle to WOT, you wanna keep that function. That is the only way I can think of fuel flowing without vacuum being applied. Chinese Atv Engine Diagram Wiring Diagram On The Net. The restart is accomplished by the fuel in the float bowl until the engine draws vacuum and opens the petcock. It uses engine vacuum createdwhen the engine is running to pull back a small piston that allows the fuel to flow. or Best Offer. I put a roll of electrical tape next to it for size comparison. I have a picture of where the line goes on my album cover picture. It's found on the carbs with vacuum lines running from the rack of carbs up to the petcock. 3,999 Posts. *NOTE: Petcock components come finished in black, zinc and alloy for contrast. or Best Offer. The way a vacuum petcock works is the vacuum pulls the diaphragm back, compressing a spring and releasing pressure on a ball or some other sort of valve, this allows fuel to flow around the ball and to the carb. United Brass Works is a manufacturer of high quality bronze, ductile iron and carbon steel valves for a variety of applications. Thank you,. This is the most common valve found in use today. Petcock Operation. On and reserve and off will work as before you just won't need vacuum. Example: The forward facing petcock tube is connected as well as the vacuum line. This could also be your problem. thejunkmanadv. 2336 Answers. 1,755 Posts. Fuel-Injected motorcycles rarely have a petcock. Joined Jun 26, 2017 · 64 Posts. One vacuum to PAIR, other to the petcock. Gopowersports is truly your only one-stop-shop for all your go kart parts needs. Assuming these numbers correspond to the carbs, theres a nipple on the #2 sticking straight out that comes off the head, right below the carb- it has a line on it thats about 6 inches long- I am assuming that is the petcock vacuum line, correct me if im wrong please. 23 is the o-ring. Scooterpartsco. Service Manuals,not Owners Manuals OK, your carb number system is correct,left to right,1234. Which of the two scales is the right one on the antifreeze tester. 1 - 15 of 15 Posts. ) When the. (click on image for a larger version) A problem often found when racing an NC30 or NC35 is fuel starvation. This will tell you if fuel is coming out. the forward tube is for vacuum from the little barb on the intake manifold to operate the automatic/vacuum petcock, the rear larger angled fitting connects to the fuel line that goes to the tee between the carbs. So you avoid starting the bike with a filled cylinder and doing significant damage to your bike. Remove the oil filler cap. These are vacuum operated, ment to only allow fuel flow when there is vacuum present- ie the engine is turning. But here are the pictures. On a ninja ex250 I recently purchased I noticed the vacuum hose which attaches to the pet cock to actuate the flow of gasoline to the carburetor was detached at the connection to the petcock. Easiest way to tell the difference is a vacuum petcock will have a small flat plate with a hose nipple that the vacuum hose hooks to. Home / Scooters / 150cc Scooter. If your fuel hose enters on the side of the carb (D),,someone probably put a set of carbs on from an older CX that did not have the vacuum petcock (1980 and older). Roughhouse 50cc Scooter Wiring Diagram Wiring Diagram. Still available from some aftermarket suppliers for about $23. Fuel-Injected motorcycles rarely have a petcock. Mounts under the fuel tank and is. Attach vacuum-gauge with T-connection at petcock. I have a 2008 shanghai shenke 50cc scooter that i cant get to run. Okay people! This petcock/fuel valve is from a 2007 Kymco People 2T 49cc scooter. measure vacuum going to petcock. Now also, the A/C compressor clutch is set to be disabled by engine load and throttle position.