Question about 1981 kawasaki Csr 1000

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Gas leaks out 2 of the carb intakes after the bike sits for a while. Is this a float problem?

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Your overflow pins don't get enough pressure to seal the hole. Could be the barrels, or anything preventing the pins from going all the way up. You might want to remove your carb, tear it apart
(very carefully if you do it some, not to lose anything) and give it a nice cleaning. A practical test to check if it works after reassembly, is to blow air ( mouth, not compressor) to see if the barrels go up. You will feel it. If none of the above happens, you have probably worn pin sealers. Replacement is tricky. Leave it to people with special tools. Screwdrivers are NOT friendly with bronze.

Posted on Oct 11, 2010


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I was riding my bike and came to a stop it shut down and started to leak gas out the air intake now it will not start. What do I need to check to fix this issue

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1 Answer

Suzuki 800, 1997 carb floats stuck

the floats are easy to fix...getting to them is the problem. the old gass has gone bad and will not ease up if new gass added.
remove carbs undo the 4 retaining bolts on the bottom of the carbs spray with carb cleaner free them up by hand (try not to adjust anything) and replace on bike !

Apr 27, 2013 | 1997 Suzuki VZ 800 Marauder

1 Answer

Hi i have left side leaking carb after sitting for a while. What would be the issue

I do a lot of small engine repairs, and commonly when the fuel is cut on and the carb starts to leak, your float is stuck open. you said that it has been sitting for a while., How long? Over a period of a couple months, condensation will start to build up in your tank and carb float bowl, with this happening it starts to build up corrosion and electrolysis. To fix this problem :: 1 drain your tanke completely. 2 remove the carb float bowl from one or both carbs ( however many your bike has) ((DON'T LOSE THE GASKET) 3 carefully remove the pin holding the float in, and when you remove it be careful, there is another little pin with a rubber tip attached to the float 4 clean them thoroughly, pins and float, 5 clean inside float housing 6 Reassemble, carefully in exact order you took it apart. 7 fill tank with fresh gas and add 2 ounces of STABIL water remover and fuel treatment. This should fix your problem.. Let me know how it goes

Jan 10, 2013 | Motorcycles

1 Answer

When off gas is leaking

1. remove the hose from the carb and see if the petcock is shutting off the gas and if not clean, repair or replace the petcock.
2. look in the tank and see if it has rust in the tank even a small haze of rust as rust will cause the needle and seat to stick in the carb and make the gas leak. If the gas tank has a lot of rust it may need a tank rubber liner kit added or even a new tank to stop the leaking.
3. if the bike has been sitting for a while it may have trash in the fuel system(carb/petcock/tank). Rust or any trash can cause a leak. Properly clean out the carb and fuel system and add a new filter when done.
4. Improperly adjusted or bad needle/seat or float in the carb will cause continual leaking. Replace the needle/seat/float and adjust the new one when installed. Check your service manual for float adjustments.

Jul 22, 2012 | 2002 Honda CR 125 R

1 Answer

Motorcycle 1981 Kawasaki KZ440B Leaks gasoline while it is sitting overnight then when a start is attempted in the morning a large puddle of gasoline and oil leaks out. All leaks are coming out of the...

The carb float valve is stuck, or the float needs to be replaced. The oil you see is probably being rinsed off the case by the fuel. Remove the carbs and inspect the condition of the float needle and seat.I would just replace it given the age of the bike. Check the float-if it's brass, shake it to make sure there is no gas in it. If there is, replace it. If it's plastic, put it in a cup of gas and make sure it floats. They do get saturated over time and need to be replaced. When putting it together, consult the factory specs for float level, set it and you should be back on the road. Good luck!

Jun 14, 2011 | kawasaki ZRX1200 DAEG Motorcycles

1 Answer

Getting a gas leak. could the intake be dry rotted?

the intake manifold not likley the cause of a gas leak. these bikes will develop leaks around the float bowl gasket or the accelarator pump diaphram. if bike has been sitting it could be a over flow poblem also.

Aug 03, 2010 | 2002 Yamaha Road Star Silverado

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Hi: My 2004 Harley will only run when leaving choke on, as soon as I push in choke the bike shuts down, also backfires when giving it gas when choke is still on, do you have any ideas what maybe causing...

sat up too long pull the carb bowl remove the jets clean and reinstall them pull your petcock off clean the screen put in good gas,and you should be set when you turn the gas on if the bowl vent leaks gas tap the carb bowl the float needle will find its seat and run

Apr 21, 2010 | Harley Davidson Harley-Davidson Motorcycle...

1 Answer

Fuel leaking out of airbox breather tube , have stripped and cleaned carbs ,thought may be sticking float seemed to run ok for a while but then started leaking again . when oil was drained got close on 4...

hello, sounds like you need to set floats in carb, if you have already done that, buy new floats, sounds like one or more of your floats are bad, when you cleaned carbs, did you check and see if any gas was inside the floats, sometimes they will get a pinhole in them, then they will fill with a little gas, and they wont turn gas off, because they cant float in the gas, the carbs are letting gas run through intake down into motor, always turn gas off when not riding your bike that might help a little,

Feb 01, 2010 | 2002 Yamaha XJR 1300

2 Answers

Air box and crank case fuel flooding problem happened before, thinking it was stuck or worn float needles; I installed 2 Carb float needles left side facing rear of carbs , all larger main jets, all...

Well there only one way the fuel can get into the crankcase and that's from the fuel tank. The petcock must be draining and the float needles are not stopping the fuel flow. Do you have a prime position on the petcock? If so do not run the bike in the position. Try topping the tank off with gas and letting it sit for a while and see is the gas has gone down and then check the crankcase and see if there's fuel in it again. i still say its got to be your petcock.

Sep 29, 2009 | 2005 kawasaki ZRX 1200 R

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