Sportster Leaking Gas From Overflow

took it for the mot and its started leaking fuel from the overflow, so it failed. the only thing ive done which i assume wouldnt affect it is disconnect the tube connecting to the tank to drain out the fuel. It is a small round piece of fuel resistant plastic or rubber about the shape of a pencil eraser, but a little smaller. This is the pipe that is dripping. 0 out of 5 stars 1 $12. The valve opens at approximately 97 kPa (14 psi). I made another stop half-way between there and home, and there was no leak. You may have bought yourself a used Sportster, in great shape, but you eventually find that your Sportster has oil leaks from under the valve covers. If water is running down from the pressure relief valve, through the overflow pipe and to the floor, it's possible that too much pressure is being built up inside the tank and the pressure relief valve is doing its job draining some water to relief this pressure. Reply I've never had trouble with my car smelling of fuel or dumping down the overflow. I took it apart and checked and reset the float but still does the same thing. Moreover, the seemingly small water heater overflow leak could lead to water heater flooding and will eventually cause mold in carpeting as well as permanently stained walls. Dirty or damaged air cleaner element. Honda recalls outboard boat motors due to fuel overflow issue. Sewer gas is a complex mixture of toxic and nontoxic gases produced and collected in sewage systems by the decomposition of organic household or industrial wastes, typical components of sewage. If the breather outlets in the tank are covered in fuel, this will not allow gas to escape therefore pressurising the tank (this is why it leaks after expanding in the heat of the day) and blowing the fuel through the breather pipes which is its easiest escapre route. anyone have an idea? 2003 harley sportster overflow valve leakin gas when running?. What would be the first thing to check, the float valve? That's about the only thing I can think of. help 2009 crf 450 coolant leaking from overflow hose « on: September 11, 2010, 09:24:23 PM » i have a 2009 crf 450 that is leaking fluid from the overflow hose. Motoparty Fuel Gas Tank Oil Cap For Harley Davidson Dyna Sportster XL 1200 1100 883 48 72 Softail FXD FL XL FLT Big Twin Touring Road King Fuel Gas Cap,Black 1. Engine oil is black or very dark brown and will be very slick to the touch. A leaking fuel valve can be caused by long term storage. The auto shut off on the pump does not kick in until there is fuel running down the side of the truck and onto the ground. Motoparty Fuel Gas Tank Oil Cap For Harley Davidson Dyna Sportster XL 1200 1100 883 48 72 Softail FXD FL XL FLT Big Twin Touring Road King Fuel Gas Cap,Black 1. Can someone help me out and tell me how to fix this issue?. I have replaceeverything but the float in the carb, and it leaks when the motor is running. Harleys are dry-sump bikes, meaning the oil is stored remotely and pumped in. Hello everyone, Just wanted to say what a great forum this is! I have a 73 sportster xlch, 1000 cc and was hoping that someone could answer this question for me; what would cause this part on my bike (I don't know what it's called; fuel overflow?) to leak gas?. I have ordered some submersible fuel hose to replace the bad hose. New needle jets and needle seat o rings together with a full clean and float check. the only thing ive done which i assume wouldnt affect it is disconnect the tube connecting to the tank to drain out the fuel. A water heater has a limited life span. MG MGB Technical - Leaking SU Carb Problem Fixed I thought that I would share with the club the solution that I found for fuel leaking from the rear SU carburetor's overflow vent. The float needle valve is responsible for regulating the flow of fuel into the float bowl. Fuel Injected and Newer Engines. What would cause gas to leak from the carburetor Harley presure builds up in the tank forcing gas out of the overflow vent in the a 2008 883 Sportster produces approximately 55 horsepower. Prevent Algae. Hand primer pump. Has anyone encountered a strange fuel leak with the 6. Got some fuel leaking from the vent pipe to my fuel tank. I want to focus on aerodynamic stress however, like when a rocket deviates from its path or has a wrong angle of attack, what causes it to be destroyed? Purely drag force? As an example: What mechanics were at work when an Ariane 5 was destroyed on June 4, 1996 due to an integer overflow?. Re: Fuel leaking out of tank overflow / vent line « Reply #16 on: February 27, 2015, 05:33:58 pm » I know this is an old thread but I have this same problem and was wondering if anyone could suggest the best way to plug the port underneath the tank? as suggested by JPavlis_CA and Mattchewn. When the car sits long enough the fuel in the float chamber may evaporate and the float drops to the bottom of the bowl. gas leaking out overflow tube as soon as petcock turned on fuel running out of overflow tube,running or not as soon - Harley Davidson 2004 FXDWG - FXDWGI Dyna Wide question Search Fixya Press enter to search. Yamaha has replaced both of the roll-over valves and still having the problem of gas leaking from that hose. Im gonna change the float height. the only thing ive done which i assume wouldnt affect it is disconnect the tube connecting to the tank to drain out the fuel. Worn or damaged needle or needle jet. Making VERY small adjustments to it will eliminate the problem IF it is not from crap in the carb. Talk to any owner of a Cummins P pump, and he will tell you he has replaced his P7100 overflow valve. Specifically with this problem: some threads report fuel being spilled onto the top of the tank and/or fuel leaking down the overflow pipe to the ground in front of the back wheel. Even though leaking exhaust pipes are a common problem in cars that have gone through a lot of wear and tear, an oil leak in an exhaust pipe is something that confuses a lot of people. Was running great then started leaking fuel from overflow tube from the bottom of carb and died. The one attached to the gas tank is oriented poorly and a pain to remove but not terrible. Used engine oil may have a slightly burnt odor. Getting the T&P valve replaced will often resolve the leak coming from it, as well as suspected leaks on the overflow pipe. Just make sure to use a new valve that matches the old one. Carb is leaking fuel?? My 1991 Polaris Trail Boss 350L is leaking fuel from the carb overflow tube like a faucet. it has a little plastic overflow valve built into the cap that sometimes shuts off the vent. The drain screws can be loose (partially open), or leaking. Honda recalls outboard boat motors due to fuel overflow issue. Carb was leaking fuel out of overflow when engine was off. My house is economy 7 & where hot water/immersion tank is, there is a small plastic pipe leading to outside house, which is leaking water and running down front of house & into lounge ceiling. Learn how to upgrade to a larger fuel tank here. I think it was coming out of a carburetor overflow, don't remember, it was a long time ago. A leaking fuel injector or injectors are normally the cause for difficult or hard to start engines especially when they are warm. During the self-diagnostics, the Powertrain Control Module ( PCM ) first checks the Leak Detection Pump (LDP) for electrical and mechanical faults. Oil leaking out the overflow tube Until a diesel engine is up to the operating temperature it won't be burning all the fuel. My problem is that the obligatory anti-overflow valve doesn’t allow fuel through the vent line in the first place, forcing it to leak through the weakest link along its path to the tank, from the tank, or further downstream toward the engine. I have a fuel drip from the tank overflow vent tube. Blended with corrosion inhibitors. a new seat for the needle & new needle. In most cases, rebuilding the carburetor can repair a carburetor leaking gas. FUEL OVERFLOW from your SU Carburetors - CB-116. I had an intermittent, but substantial leak, from only the rear carburetor. Even if you replaced/cleaned it, there must be a slight weep due to wear/bad alignment or (best bet) dirt. I get my bottles of 2-stroke oil (I run 32:1) from my local auto parts store, pour one of those into an empty gallon gas can, then take the can to the pumps and fill it up. What has happened in your case is that the bowl has got too full of fuel and it is leaking out of the breather. Ok, here's my problem: The raptor leaks gas through the over flow tube on one side of the carb, (the overflow line tube closest to the petcock fuel valve) Ok, when I turned the gas off on the petcock the gas still flows through the overflow tube. Many had something to do with leaking fuel in some sort. the only way fuel will stop is if i turn the fuel vavle off. A water heater has a limited life span. hi, just wanting a bit of advice before i call out engineer. I was advised to weigh the float (using a postal meter) and turned out that it had taken on weight (I was told ethanol related) and was no longer within spec. They are pouring over the exhaust system and yes, I've just read your suggestion about making those vent pipes. Has SE air filter and SE slip on's. Here is how to replace the most common gaskets. Also bogs out when i throttle up hard. I polished the port where the float needle sets in and the needle itself. I have ordered some submersible fuel hose to replace the bad hose. Won't restart. A small amount of grit between the needle and seat assembly when the fuel is left on will allow the fuel to gravity feed to the carb overflow. Fixing bathroom plumbing can be expensive, but the cost of a leak left untreated can be even higher. Enrichener system plugged, not properly functioning or improperly operated. It got up to 114° this summer. Talk to any owner of a Cummins P pump, and he will tell you he has replaced his P7100 overflow valve. Get free shipping, 4% cashback and 10% off select brands with a Gold Club membership, plus free everyday tech support on aftermarket Harley-Davidson Sportster Fuel Lines & motorcycle parts. Sometimes the plastic float leaks in and sinks. Change the fuel filter. I can fill it up eventually but it takes foreve. When that happens the bowl can warp a bit around the top gasket allowing fuel to leak. Worn or stuck float valves are very common following prolonged storage or when gasoline has been allowed to sit inside the carburetor and begins to lacquer with age. New needle jets and needle seat o rings together with a full clean and float check. In today’s video, I want to show you common fuel leaks that may develop on motorcycles. Also bogs out when i throttle up hard. Fuel and oil specifications, grade, octane and viscosity as well as selecting motor oil and oil changine procedures for 2008 Harley Davidson XL 883 Sportster (2008), XL 883C Sportster (2008), XL 883L Sportster (2008), XL 1200L Sportster (2008), XL 1200R Sportster (2008), XL 1200N Sportster (2008), Harley Davidson XL 1200C Sportster( 2008), XL 1200C Sportster Custom 105th Anniversary Edition. Hand primer pump. Sometimes they stick or the float doesn't pivot freely. I've tried plugging it, but all that seems to do is cause my carb to become flooded. This water heater leaking issue mainly happens when the valve has surpassed its productive age period. The leak was small and very minor that I ignored the leak until now. This indicates two problems the Float valve is stuck open and the petcock is not shutting off. I rebuilt the carb. Flushing your cooling system is the best way to stop this type of leak. My carb started leaking gas out of the overflow tube. when the petcock open the fuel flows into the float bowl. Anyhoo, I removed the fuel tank, hooked up a 1 1/2 gallon gas can with about a gallon of gas in it, and added some Chevron with Techron fuel system cleaner to the gas can. Outdoor fuel tanks are made from steel that will react chemically with surrounding soil over the years, causing small pinhole-sized openings to develop. Ok, here's my problem: The raptor leaks gas through the over flow tube on one side of the carb, (the overflow line tube closest to the petcock fuel valve) Ok, when I turned the gas off on the petcock the gas still flows through the overflow tube. The overflow that is leaking might be a pressure relief valve opening to release the built up pressure. That part is done! Upon reinstallation, the gas line leaks profusely. Recently it has started running poorly, maybe when its warm, maybe when its cold or sometimes the problem just seems to come and go. I just picked up a TTR125 dritbike and it runs well but the tubing from my carburator is leaking. there is a specific range that the fuel cap should vent, I can't recall off hand what it is but it will be around 3-5psi which should be low enough to prevent too much pressure being built up to create a leak in the system, that being said if your fuel cap was defective and allowed the pressure to build up much higher then it could cause an issue, if there was a leak it would most likely be. You shouldn't have any liquid fuel leaking in that area. Many engines (older motorcycle engines in particular) do not require any fuel pump at all, requiring only gravity to feed fuel from the fuel tank or under high pressure to the fuel injection system. Smell something funky from the back of your Accord? If it smells like leaking gas, it probably is. turning my fuel on at the peacock, fuel starts pouring out the carb overflow, shutting down the fuel the overflow stops,,,i recently pulled the carb to replace the seal at the carb to intakei never turned the carb overi assume that it has to be the float 1996 carbed roadking stock carbam i rite assuming that the float is sticking. The FAULT legend of the P/BSW-5QL can come on in the AUTO or the MAN (fuel transfer) configuration. didn't rejet yet. As I say though, only about one drip every 30-40 seconds after the boiler has been heating the hot water for about 20 minutes. 12-hour days. A leaking water heater may seem like just a minor nuisance, but it can quickly turn into a big problem. took it for the mot and its started leaking fuel from the overflow, so it failed. Re: Cag leaking gas from overflow tube HELP Actually, it's best to mix it OUTSIDE the tank in a mixing bottle or a 1 gallon gas can. com has the. Summit Racing has you covered with a wide range of coolant recovery and overflow tanks to fit your application. Approximately 70% of supplied fuel is returned to the fuel tank. Craig, mate I dont think this is really a concern as I suggest the tank is just overfull. Normally, the check valve in the lift pump would prevent back flow. And the overflow condition occurs when the needle valve doesn't seat cleanly in its seat. Fuel level (float chamber) too low. but good thing you cleaned that crap , a ryco v8 straight filter works for me, change it every say 6 months. Gas was dripping from between the carbs somewhere and gas was entering the air filter housing and leaking down the air box drain tube down by my right foot. ve checked the float valve and needle and they appear ok. How To Deal With The Oil Blowby Phenomenon. As soon as I open the petcock gas pours out the overflow tube. 9 Causes of Fuel Leaks. Usually the gasoline fills the carburetor bowl up to a certain level and then the carburetor float will lift the needle and close the valve so no more fuel will come i. The garage has ordered a new fuel pump, which is on back order because it's hard to locate. Carburetor and Fuel System Troubleshooting Guide. So far I have stripped and cleaned the carb (4 times), cleaned the fuel pump and checked the fuel lines. I have a 2004 Polaris ATP (Same as ATV w/ dump bed) 500 high output. I'm guessing the fuel hose inside the tank has deteriorated. Unscrew the back nut on the outside of the cistern. The plumber will then test if there is no longer any leak on the replaced valve and overflow pipe of your water heater. The vent tube needs to run up and above the tank in a loop before it runs down to the ground otherwise fuel will slosh around and leak like there's no tomorrow. I would also take the plug out, as the fuel will just fill up and leak out the fuel door. Must be a real small hole. I rebuilt the carb. Basically, after we bought it, we found that when we fill the gas tank up all the way, gasoline (between one and two gallons), leaks out into the engine compartment and pools up. The float needle valve is responsible for regulating the flow of fuel into the float bowl. My question is can Air line for brakes be used? It looks the same and the ID is the same(1/4)(?) The NAPA mgr said it could be used since the pressure is low, but before I used it I wanted your opinion. This forces gas out of the sides of the bowl. You will have to remove the black gas line and carefully examine it for cracks or splits. When the T&P valve starts leaking, it may look as if the issue is at the bottom of the tank because the overflow tube abandons the released water beneath it. Why does gas leak out of the carburetor on your 98 harley-davidson sportster? tank forcing gas out of the overflow vent in the carb. This isn't a simple little fuel leak either, this is more like a fuel geyser. A short vid from sportster problem 36 showing how the float lets fuel into the carburetor, the engine has to be running to allow fuel in , your fuel line will have air in it until the engine is. Gas leaking out overflow tube as soon as petcock turned on fuel running out of overflow tube,running or not. Riding the bike increases the use of fuel, so it doesn't "overflow" at those times. Dirty or damaged air cleaner element. If you take the float bowl OFF then you can fill it with gas and see if the drain screw is causing the leak OR if it is the overflow tube. I got this tractor FREE from my grandpa and almost as soon as I got it it started leaking fuel out of the carburetor. What is it? There's no way I could have used that much propane. I got a second hand quad and it runs well except a fuel leak on the side of the engine coming from a small nozzel. If gasoline is dripping in the throat of the carburetor, the problem is most likely a ball check valve inside the carburetor body. Ideal for winter storage and year-round use, this premium Fuel Stabilizer keeps fuel fresh for up to 12 months. Leaked from the carb overflow tube. The auto shut off on the pump does not kick in until there is fuel running down the side of the truck and onto the ground. when I was fueling my car c280 sport the the pump shots of and the tank wasn't filled up yet it was only filled up 1/2 way in. So we waited an hour for a tow truck & had to pay for a 40 minute tow home. Mok from Billy Aircon did a very good job, he explained the details and chemical overhauled my blowers to brand new condition, he even make sure the gas is at the optimum pressure as well as the wind blown out is at the coolest condition. If fuel gets into the engine it will thin out the engine oil, ruining it's ability to lubricate. Yes it should be stopped in the carbs but if they were that reliable manufacturers wouldn't fit fuel taps. d say i always pull the guts out of the vacume petcock run it manual, but i got a pringel on it now, always turn the fuel off 1/2 a k b4 your going to stop, then that overflow problem never happens. I thought it was leaking oil from air cleaner but i just installed a new k&n and come to find out its gas leaking from air cleaner. They said a manufacturing defect in the vapor separator float could cause the outboard motor to leak fuel from the air vent tube coming from the vapor separator. Finding Intake Manifold Air Leaks. You can buy valves through online appliance parts dealers (using your water heater's model number), or simply take the old valve into a local home center or plumbing supplier to find an exact replacement. Customer Service Techs May 11th, 2016. It isn't a big deal, the first thing to try is, with the fuel turned on, solidly tap the bowels with the handle of a screwdriver, this can dislodge the problem and it's fixed. I have ordered some submersible fuel hose to replace the bad hose. Restricted fuel supply tract. Chrysler has seen this problem in the past. Killed it, turned the gas off, and took a look. If you are riding your motorcycle and notice a fuel leak, park the motorcycle immediately!. or even a little throttle, but after i ride hard for a few minutes you can see that fuel was slowly bubbling out the overflow at the bottom of the carb. Enrichener valve not seated or leaking. Adjust the float level - Remove the carbs from the bike. I put a new Nokia plug end on cause the old one was loose n thought maybe bad connection as far as the sputter goes. I have checked the floats for leaks there solid so that shouldn't be a problem. It got up to 114° this summer. My problem is this: I found a hose leaking fuel from my carburetor today after I had ridden it. The auto shut off on the pump does not kick in until there is fuel running down the side of the truck and onto the ground. If it leaks back into the airbox, there could be other possibilities such as your petcock is leaking through the vacuum line. “The float may fail and cause excess fuel to enter into the vapor separator assembly, and then exit through. Check the overflow valve for leaking around the threads where it has been screwed into the water heater. Accelerator pump inoperative. i would be thankful for any advice. Click here to view all the Harley Davidson XL1200C Sportster 1200 Customs currently participating in our fuel tracking program. Finished my ride today and loaded the 2003 Grizzly on the trailer. Finding Intake Manifold Air Leaks. Hydrogen sulfide is toxic, and can cause sickness, disorientation and even death in high doses. Slant Fin Gas furnace - water dripping from overflow pipe My 7 year old slant fin furnace has started to drip water regularly from the overflow pipe. The cause of this is the ethanol in the gas causing plastic parts in the Inlet Check Valve (ICV) to bind and not close quickly enough to prevent fuel back-splash when full. The failure of this shutoff system necessitates the rebuilding or replacement of the valve. Why does gas leak out of the carburetor on your 98 harley-davidson sportster? tank forcing gas out of the overflow vent in the carb. We usually go through a small variety of small screw drivers and picks before, finally, finding success. When I put the gas switch to ON a big amount of gas is leaking from the overflowso I start using my quad with the gas switch to RESERVE wich is also leaking but less than in ON p. There's a fuel cross-over or balance tube between the carbs. That is the other pipe shown in the pic without the cracks. Take the carb apart, blow everything out with compressed air and carb cleaner, put the rebuild kit in,. FUEL OVERFLOW, SU H-Type Carburetors #2 - CB-116A. Inlet system air leak. And as maybe as a kid your dad did this or used the old Coleman heater cap on his sportster 502 stove. Again it should be emphasized, the #1 cause of carburetor related problems on a Harley or other V-Twin motorcycle is VACUUM LEAKS. Gas/Oil In the case and out of the crankcase breather Hey everyone, I got my 2000 deuce about a year ago and it had issues with gas leaking into the case if I didnt shut off the fuel so i figured it was a petcock issue. Swapped a carb from a good running scooter and have same results. What you're more likely seeing is the return line from the pressure regulator is leaking. Here we have another issue with SU H-Type carburetors that may result in fuel overflow. We’ll explain why a furnace creates condensation, and what’s causing it to leak out of your. 4 fl oz (118 ml) bottle. Another cause of a gas leak is a sticking float inside the carburetor bowl. The condensation appears to be oozing from the wing but it is in fact flowing slowly over the surface, filling and overflowing every seam and imperfection. Hi guys, This is my first post, so I'd like to say hello to everyone. My house is economy 7 & where hot water/immersion tank is, there is a small plastic pipe leading to outside house, which is leaking water and running down front of house & into lounge ceiling. Dirty or damaged air cleaner element. Initially, I only experienced this issue at one particular gas station. I pulled the float bowl off the carb and found some dirt in it so I removed the needle and float from it, did a little cleaning, and put it back together. Ive replaced the petcock diaphram and thought i had done the job to stop the fuel leaking out the overflows but its still leaking out one overflow which is conf. My Harley evo Sportster 883 will not start and gas pours out of the overflow tube? ? I'm building a bike using a 2000 Sportster 883. Hey everybody I'm new to this site. In today's video, I want to show you common fuel leaks that may develop on motorcycles. The carb had been off the bike for 2 months, while i was working on my project, so i assume it got stuck somehow then. If such leakage occurs, combined with a spark or a flame, fuel vapors may ignite - resulting in fire or explosion. Why does gas leak out of the carburetor on your 98 harley-davidson sportster? tank forcing gas out of the overflow vent in the carb. Boats and planes are unique in that any sort of fuel leak is usually retained inside the vehicle, or the hull in the case of boats. What the one way valve does is prevent gas fumes from getting out of the fuel tank. I've just taken the bike back out of storage, and refilled it with oil and gas, as well as putting a fully charged battery back in. It does not require any disassembly or mechanical skill. Harley sportster 94 1200 XLH leaking from overflow - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. I pressed the throttle and just a bit over idle and it backfires and sputtered so i turned the bike and the gas off. This forces gas out of the sides of the bowl. Gas/Oil In the case and out of the crankcase breather Hey everyone, I got my 2000 deuce about a year ago and it had issues with gas leaking into the case if I didnt shut off the fuel so i figured it was a petcock issue. Noticed Friday, not dripping much, but this morning when I got to workit is dripping a lot. Harley Davidson Gas Tanks Line Leaks Q: I removed gas line on left rear side of the Harley-Davidson gas tanks, 2007 Softail to remove tank and disassemble electrical wires to run them inside Fatboy handlebars. bike is still leaking gas. I leave mine parked in direct sunlight while at work. Gas leaking from carburetor air line. Im gonna change the float height. Fuel Injected and Newer Engines. Flapper: Ensure it is seating properly. The issue of gas "burping" out of the filler neck right after the pump clicks off when the tank is full is a fairly common issue among Jeep Wrangler TJs. Then i noticed that one time i had left the gas turned on in the garage and a small drip was coming out of the overflow tube for a couple days, so I shut the gas off and it stopped right away. Harleys are dry-sump bikes, meaning the oil is stored remotely and pumped in. There are two possible reasons for this. Mok from Billy Aircon did a very good job, he explained the details and chemical overhauled my blowers to brand new condition, he even make sure the gas is at the optimum pressure as well as the wind blown out is at the coolest condition. These microbes require both fuel and water, so the drier the fuel, the smaller your algae problem is likely to be. i went over to checkout the bike this morning and i noticed it had stopped leaking fuel out of the fuel overflow valve and the tube was dry. DOWNLOAD Harley Softail Troubleshooting & Repair Manual INSTANT DOWNLOAD MOTORCYCLE REPAIR MANUALS FOR HARLEY SOFTAIL MODELS. 25 zetec, sometimes when I fill it up I struggle to get fuel into the car and find it running out underneath the car. 1994-2003 Honda Magna VF750C Fuel Leak Fix Problem : I did not use the Magna for about six weeks. My problem is that when I park it outside on a warm sunny day for atleast a few hours when I come out to use it again there's a half dollar size puddle of gas on the ground directly under the overflow tube on the bottom of the bike. Hi, not sure how you made out with this issue. The number one cause would most likely be leaking fuel injectors. One was dry but the other one was full of gas. , well done Billyaircon. Hello Ken, I have a 2006 883 sportster and I recently replace the main jet to a 175, pilot jet to a 44 and added the EZ-Just Mixture Screw since I changed the stock air filter for a screamin eagle air cleaner and Vance & Hines shortshots pipes, the problem that the bike has is that every time that I ride for a long time gasoline will start leaking from the air filter so far I have cleaned the. I just picked up a TTR125 dritbike and it runs well but the tubing from my carburator is leaking. Why is there a gas leak by the small engine air filter & vent tube? Gas leaks around the air filter usually indicate problems with valves inside your engine and how it is processing gas. I have cleaned the carb, checked the float level via Tech Tips on the site and it still wants to leak. is this the area where the fuel pump is?. - If fuel is not overflowing, then unscrew the flathead screw in the side of the bowl (sight screw) and adjust the needle valve until gas barely starts dripping out the hole. A Novolac epoxy sealer such as Caswell sealer will do that. FUEL OVERFLOW from your SU Carburetors - CB-116. Initially, I only experienced this issue at one particular gas station. The idea is that air can get in in a hurry if it needs to but is restricted on the outflow. The Prime setting on the petcock allows for constant fuel flow. If you overfill the fuel tank, excess raw fuel gets into the one way valve and jams it up so it stays closed and doesn't open. By Andrew Pollack on 01/17/2011 at 10:13 AM EST Eighteen months ago I wrote a little article about how to adjust the brakes on a lawn tractor because I couldn't find the information myself when I searched. Rated 1 out of 5 by DrJC from Cannot open gas cap with "gloved hand" The flush mount gauge worked great, but in early install the gas cap which the advertisement says "easily opens with a gloved hand" was a little fussy, but has progressively gotten worse, today I was trying to refuel and after 20 minutes of try gave up, nothing would make it open. A short vid from sportster problem 36 showing how the float lets fuel into the carburetor, the engine has to be running to allow fuel in , your fuel line will have air in it until the engine is. Plugging the vacuum line should have no bearing on this. Yep, you guessed it correct. Why does my gas tank overflow when it's not full? 8 Answers. Potentially a leaking fuel out of overflow - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum. It may also begin to leak after time or if it was not installed properly. Does anyone know why and what I can do to fix this?. It also was leaking fuel, but not like what the OP described. This vent needs to be cleaned. Your engine had been running fine. Re: Gas leaking from the overflow « Reply #8 on: August 06, 2014, 10:37:14 pm » I pulled my bowl tonight at the track because it was overflowing so much my bike sucked my bowl dry after 4 back to back to back to back drag passes running hot laps in practice. Hi all just done a carb rebuild on my 1986 FJ 1200. you have to find what jet valve is doing the leaking and fix it. A leak detection device creates a vacuum in the space between the tank wall and the membrane. , former Director of Emergency Medicine at Frankfurt am Main. Before we looked after it there was signs that it had been leaking from the flowswitch. My main question is this: I replaced the engine mounts, and when I put the engine back on, and double checked all wiring, I now have the carb pissing out gas from the overflow, there isn't even a screw for the overflow and it now passes gas, it wasn't doing this before. Both conditions are typically caused by a stuck or worn float needle valve. My Harley evo Sportster 883 will not start and gas pours out of the overflow tube? ? I'm building a bike using a 2000 Sportster 883. Also the hoses could need to be tightened or replaced where it attaches to the filler inlet at the gas cap area of the body; gas could be leaking out at the body connection and running down the outside of the hose, dropping to the ground when it hits the tank. I've just taken the bike back out of storage, and refilled it with oil and gas, as well as putting a fully charged battery back in. I have a 2000 Heritage that has been upgraded with a Mikuni carb. 1200 fuel leak from overflow. Hello everyone, Just wanted to say what a great forum this is! I have a 73 sportster xlch, 1000 cc and was hoping that someone could answer this question for me; what would cause this part on my bike (I don't know what it's called; fuel overflow?) to leak gas?. I've got a problem with my coleman 533 dual stove, I follow the instructions how to pump but I still cannot manage to light the stove (all the pressured fuel leaks beneath the burner box assembly, from the other end of the generator). 'Carbs' as they are known do have their problems and dribbling out petrol from their overflow pipe is a common issue, especially if the engine hasn't been started for a while & the carb is a few. I have checked the floats for leaks there solid so that shouldn't be a problem. Remember - NO SMOKING or other activities that could ignite the fuel while working on carbs!. In today's video, I want to show you common fuel leaks that may develop on motorcycles. secondly the expansion vessell has lost its charge and as water gets heated the water needs to expand and this raises the pressure,thirdly the domestic heat exchanger has failed and the mains water pressure then increases the boiler to the pressure of the mains. I think the float may be getting hung op on the float bowl. I've got a problem with my coleman 533 dual stove, I follow the instructions how to pump but I still cannot manage to light the stove (all the pressured fuel leaks beneath the burner box assembly, from the other end of the generator). The Mikuni on my Tri-Moto has started leaking gas out the overflow on the carb bowl when not running. I get my bottles of 2-stroke oil (I run 32:1) from my local auto parts store, pour one of those into an empty gallon gas can, then take the can to the pumps and fill it up. That is the other pipe shown in the pic without the cracks. You may have to register before you can post: click the register link above to proceed. We usually go through a small variety of small screw drivers and picks before, finally, finding success. Just find a 1 1/2" O ring and slip it over the latch area of the cap where the original gasket is. This unburned or partially burned fuel goes down the cylinder walls into the base of the engine or to the oil pan where the engine oil is. Anything else I should order prior to opening the tank (clamps, seals etc ?) Ordered the hose here (its harder finding submersible fuel hose than you would. Slant Fin Gas furnace - water dripping from overflow pipe My 7 year old slant fin furnace has started to drip water regularly from the overflow pipe. Even a small amount of water can cause damage to your floors, sub-floors, and walls. I think it was coming out of a carburetor overflow, don't remember, it was a long time ago. It was running down the block and dripping probably 3-5 drops a sec, just shy of a steady stream. Fixing bathroom plumbing can be expensive, but the cost of a leak left untreated can be even higher. Honda made it. Yes, if I understand correctly, the overflow will still drain through the same drain tube.