Stop flowing so now i got the bike running again i have a problem with the fuel flow. it'll do good for about 20 mins of riding or so, and then the fuel will stop flowing thru the lines. i can see it stop thru my inilne filter. so i took the tank off and cleaned it out. check the petcock, it's good and flows good. so now my only guess is a stuck float but i just went thru the carbs and check the float valve and the housing and it all looked good with lil to no ridges on the rubber points. anything else that could be causing it to stop flowing.

Hi David check the fuel supply from the tank. Turn off the tap then pull the pipe off the tap or carb then turn fuel on there should be a good steady flow if not there is a blockage. There is a filter in the tank you will need to remove the tank and then the fuel tap. Also check along the fuel line for blockage. And make sure the vent in the filler cap is ok. Regards Jim...

If no DTC's are recorded, then it is most likely to be a fuel problem. You need to check the fuel pressure with engine running and this requires specialized test equipment. You need a gauge that can connect into the fuel line. Running pressure should be around 55 - 60 PSI. If the bike starts and runs ok for a minute, it is not bad gas. Bad gas is just that, bad gas. It will not burn correctly and the first thing noticed is hard starting. I assume the bike is fuel injection. If it has a carburetor then I would be checking the fuel flow as this symptom sounds like carb is running out of fuel. Dirty gas, fuel with debris in it. The petcock will be vacuum operated and if it has a leak, (on carb models), fuel flow will be affected. Also, the tank vent if blocked will affect fuel flow. Remove the fuel line from the carb, put end into a fuel safe container to stop fuel pouring all over the place generating a fire hazard, apply suction to the vacuum pipe on the rear of the petcock and you should have a good fuel flow. If you don't, then the fuel filter inside the tank on the petcock is blocked or the vacuum part of the petcock is faulty.

Sounds like you have trash in your tank or line. I've seen this happen with atv's even though you believe all your fuel going in is clean, stuff can still get in unknowingly to you. I've seen a floating honey bee in a cars fuel tank cause all kinds of problems like that. Owner spent countless hours and dollars replacing sensors, solenoids, and come to find out the dead bee would stay afloat normally, but when the fuel pump pulled it into the screen, the fuel flow would either be minimal or totally stop it all together. Pull that fuel line off and turn your petcock valve on and off to see if fuel comes out good or partially. Your bike may be getting fuel fine during low speed and idle, but upon demand when more fuel is needed to accelerate, the flow is restricted somewhere and it starves the carbs. Hope this helps.

check fuel flow, possibly you got some dirt in the carb/injection that is stopping fuel flow. also check spark plugs see if they give a spark. best.

Almost sound like it is starving for good gas flow. The first thing I would check it the vacuum hose connected to it. It might be cracked. If it is good, I would check the screen on the petcock itself and for anything inside the gas tank that could cause blockage of the fuel flow.

Hello
Your gas tank petcock is diaphram operated.
there is a vacuum line coming off the intake, that goes straightb to the petcock.
when you turn the motor over a vacuum is created, pulling the petcock diaphram back and allowing fuel to flow to your carburetor. when you turn the motor off the vaumm is gone and the spring behind the diaphram pushes it closed and stops the fuel flow to the carbs.

Now the reason the carbs are overflowing is because the floats valves are not closing, in other words the floats are sticking.
Usually a good carb clean will cure the problem, especially for that year.
the older ones usually require new float valves/seats that are usually found in a good carb rebuild kit. You shouldn't need one.

If your really broke try tapping on the bowls of the carburetor lightly, while the engine is running, sometimes the vibration will vibrate a particle loose that may be holding open the float valve.
if it works then the fuel should stop overflowing while running.

if you know how to work on it, try this, with the engine off.
open the carburetor drain screws so that fuel will run out the carb. drain. flush out the carb.
get a container to catch the gasoline.
while fuel is flowing tap the carb bowls a few times then closed the drain screws.
clean up any spilled gasoline .
start your bike.see if they stop leaking and the floats are closing.
if it still leaks, you'll need the cleaning.

Happy Riding
Best Regards
Big Al

Gas Cap. Sounds like the vent in the gas cap is stopped up. As the fuel flows out of the tank, a slight vacuum builds up. When the vacuum gets high enough, no fuel flow, engine dies. Let it sit for a minute or two, you get to go through the whole thing again. Kinda like the movie "Ground Hog Day". Try loosening the cap and going for a ride and see if that helps. Don't have the tank completely full. You don't want a lap full of gasoline. That could get uncomfortable fast. Oh yeah, I wouldn't advise smoking either or you'll look like the "Ghost Rider".

If you're running a fuel filter inline, this could be a problem as well. If you've gotten hold to some nasty gas, it could have your fuel filter nearly stopped up.

Also, you're bike is equipped with a vacuum operated petcock. The vacuum from the engine opens the petcock. I've seen lots of these petcocks fail. Check it with a hand operated vacuum pump or replace it with a pre-1994 model. I like Pingle petcocks the best.

I would recomend checking to be sure the fuel and vacum lines n the tank are installed correctly, Open the fuel filler and start the bike and see if it has any change on the problem, if so you have a vacum issue.

and then the fuel will stop flowing thru the lines. i can see it stop thru my inilne filter. so i took the tank off and cleaned it out. check the petcock it's good and flows good. so now my only guess is a stuck float but i just went thru the carbs and check the float valve and the housing and it all looked good with lil to no ridges on the rubber points. anything else that could be causing it to stop flowing. Sounds like your fuel tank vent is plugged. Try riding until the bike dies. Open the tank. Do you hear a hissing noise as the tank opened? Close the tank and try to start the bike.,,