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Anonymous Posted on Apr 12, 2014

Fuel leaking carb overflow

How do you drain carbuator bowl

2 Answers

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  • Posted on Mar 04, 2015
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This is caused by dirty carbs, as mentioned. $75 / carb retail to fix this, it's not that big of a problem, and your performance will probably improve, as well.

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  • Expert 309 Answers
  • Posted on Feb 19, 2015
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Dirt in the carb bowl not allowing floats to shut off or floats are stuck open there is a drain screw on the bottom of the bowl drain it first and see if it fixes it but i am betting you will need to remove the carb and clean it sounds like there is debris in the float shut off

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5 Related Answers

rc51project

  • 9 Answers
  • Posted on Apr 04, 2009

SOURCE: how to drain fuel from carb bowl?????

there should be a screw or a larg looking bolt on the bottom of the float bowl (carb) remove it and it will drain use a rag to catch it and drain your tank add fresh gas (if it dose'nt run right you may have to clean the carb)

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Anonymous

  • 209 Answers
  • Posted on Apr 15, 2009

SOURCE: 1998 yahmaha warrior overflow tube on carb

adjust the floater of your carburator give at least 2mm space on the top of it when you lift the floater so it will not overflow.

tombones

  • 3567 Answers
  • Posted on Apr 23, 2009

SOURCE: Fuel Leak from the Carburetor

Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Check the float as they can go bad and fill with gas such that they no longer float. Remove the idle screw and the air screw on the outside throat of the
carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the
carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. The idle speed will probably different so adjust the idle screw to get back to where it was. This process should get you back on the road.

Please rate this solution. Thanks!

Anonymous

  • 1 Answer
  • Posted on Apr 25, 2009

SOURCE: Rear Carb leaks fuel out of the overflow tube 1995 Suzuki VS 1400 Intruder

Hole in the float. It fills with gas, sinks and fails to stop the fuel flow

tombones

  • 3567 Answers
  • Posted on Jul 03, 2009

SOURCE: Kawasaki EL250 carburettor

Turn off the gas and remove the float bowl. Remove the fuel line. Remove the float pin and float with needle valve. Do not bend the tang that the float needle sits on. Spray carb cleaner into the seat where the needle valve came from to clear out any trash in the valve casing. Spray the float bowl and interior of the carb. Remount the needle and float back in place and put the float bowl back on. Install an in-line fuel filter. The diagram below shows a 1994 carb Yours will be the same or close to it.

A “very helpful” rating on this answer? Thanks!

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Related Questions:

0helpful
1answer

Overflowing Carbs again!!!

recheck and clean /adjust floats pet **** doesnt stop fuel in bowl if floats out of adjustment or valve sticking/debris will allow fuel to constant flow
0helpful
1answer

Fuel over flows thru overflow tubes only when motor is running. motor off ignition on it stops.

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
1helpful
1answer

My carb is contantly leaking petrol out of the overflow pipe and is backfiring

The overflowing is caused by foreign matter caught in the float valve. Turn the fuel petcock off and drain the fuel from the float bowl by unscrewing the drain screw on the bottom.
If this fails to cure the problem, you will need to remove the carburetor and take the float bowl off. Then remove the float hinge pin and pull out the float valve. If the tapered seat is visibly worn, replace it.
Installing an in-line fuel filter helps, too.
3helpful
3answers

Carbuator leaks gas on motorcycle

Two possibilities; the float bowl gasket is leaking, or the carburetor is overflowing (gasoline is coming out of the overflow tube).
If coming from the float bowl gasket, simply remove the float bowl and replace the gasket.
If it is overflowing remove the float bowl, pull out the float hinge pin, remove float and float valve. Clean the valve and inspect the valve for excess wear (a noticeable groove worn into the tapered seat) and replace if needed. While you have the float out, shake it and listen for any gasoline that may have leaked inside it. If there's liquid inside the float, toss it and buy a new one (or else your carb will overflow with gasoline constantly). Before you put the float bowl back on be sure to clean it out with soapy water and an old tooth brush.
That should take care of any leaks or overflowing.
3helpful
1answer

DT125 carb fuel leak

hi buddy take the carb completely off and take the bowl off and inside you will see the float you will require a works manual for this to find the float height from the carb to the top off the float it is leaking because the float is set to low so the fuel is rushing in the bowl and when the fuel gets to high inside it will start to leak out the overflow pipe good luck

0helpful
1answer

Fuel leaking from bowls on Carb

is the leak coming from the overflow or just the seal around the bowls? if you take the bowls off (turn petrol off first) the floats may be getting caught open?
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