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Carburator gas overflow - GAS Motorcycles

Posted by kevin potenciano on


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SOURCE: gas overflowing in carb. flowing out of the bottom tube

you might find that the needle isnt in properly check that first

Posted on Oct 24, 2009


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Kawasaki Kaze ZX130 - do any body have a workshop manual to this bike?

overflowing while you have it parked? I have a 1981 Kawa CSR 250 and it leaks gas when it is on the kickstand because it leans too far over... I always shut-off the gas when parking and put it up on the stand when I won't be riding it for awhile

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What is the gas line coming out of the bottom of the carburator

yup to overflow. if its leaking you need to clean your float shutoff valve .

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what are we talking about here car ? machine ?

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Um dtf 110 fuel hose loose

Sounds like the carb overflow hose. It it's leaking gas the float in the carburator is stuck and letting too much gas into the float bowl, causing the excess gas to drain from this hose. You will have to remove the carb and set the float to the proper level.

Jun 14, 2012 | 2006 UM DTF 110

1 Answer

One end of little black hose came off my sons yamaha pw 80 yzinger so when u turn gas on it comes out end. not sure where it goes.

Just guessing because I can't see what hose your talking about but if gas is coming out the hose when you turn it on I suggest looking at the carburator and I suspect the hose came off the inlet to the carburator. Thats the only place gas goes after leaving the tank, if it is coming out the overflow for the carb then your float is stuck. Some bikes have an overflow hose for this reason and it does not connect to anything just hangs down to let gas drain from the carb.

Oct 09, 2011 | Motorcycles

1 Answer

Gas flows from cutoff valve to carburator hose connection but does not flow into carburator. What is blocking the flow?

On the top of the carburator there is a needle valve, closed by the float lever. 
If the carburator chamber is full with gas, the valve is closed and no more gas can enter the chamber.

If the chamber is empty and no gas flows inside, the valve may be stuck in closed position. Cleaning or some sharp (but not very hard) knoks on chamber cover may help.

Some times the float gets broken and falls down. This is a bigger damage, because it may lead to carburator overflow.

Jul 19, 2010 | Coleman Powermate Premium Plus 6250W...

1 Answer

Gas began running out of the tube that exits the top of the carburator on the Yamaha TTR-50. So much gas that I had to use a gas can to put the excess gas into. It appeared to be leaking from the...

hi,sounds like the float in the carb is stuck in the fully open position,you will have to take the carb out,take the bowl off the bottom of the carb and inspect the float needle assembly,the little clip that holds the float to the needle valve may have come off,allowing fuel to run unchecked into the carb and ultimately out through the overflow..hope this helps..cheers

Mar 09, 2010 | 2003 Yamaha TT-R 125

1 Answer

Carburators leaking gas leaking from carb bowl overflow tube

Tap the bowls with a screw driver handle while the gas is turned on. Your floats are sticking. If that doesnt work then you have to take the bowl off and make sure your floats are not bent.

Jan 10, 2010 | 1981 Honda CBX

1 Answer

Gas overflowing in carb. flowing out of the bottom tube

you might find that the needle isnt in properly check that first

Oct 24, 2009 | Yamaha YZ 125 Motorcycles

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