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nel79

2000 Yamaha Kodiak fuel leaking out of the carb drain

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Hey guys,

Looking for some info on a 2000 Yamaha Kodiak.  When I leave it sitting I get fuel leaking out of the carb drain.  What causes this?  Float stuck? 

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Hey nel welcome to Quadcrazy. 

That leak is an overflow condition caused by the either the float getting stuck, float pin has a piece of dirt stuck up at the top of the pin which is likely or the float has a hole in it ano good full of fuel (not likely)  

Make sure that the screw on the bottom of the bowl is not loose and leaking and appears to be the over flow hose draining.

Take the carb off and pull the bowl off of the carb and remove the pin and clean it out. Inspect the top of the pin for damage. 

Put the float back in and put a clean hose on the  fuel connection of the carb hold it up and blow into the fuel line and lift the float and see if it closes the air flow off. If so you should be good.  Also double check the air fuel mixture screw unless the bike is running good and it’s just the fuel leak that’s the problem.   

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The bowl drain screw is good.  I suspect the float...Now how does the throttle cable come apart?

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I will take a look and get back to you. Also keep in mind if the bike is sitting even for a short period of time the top of that pin gets a shellack type build up from the fuel sitting up there and could just be that.  So don’t necessarily look for a piece of dirt etc. could be just gook! 

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Yeah I suspect that's all it is.  It has been sitting for quite a while...Once I can get the throttle cable undone I'll pull it off and clean it up...Now if only I had a manual...HAHA

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My dads 03 kodiak 400 does same thing. Fuel petcock is off and fuel still drips out overflow hose. Apparently something isnt letting the float needle close all the way. Im going rebuild my dads carb. 

Edited by Bills03400

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