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Yamaha four stroke 2002 15 hp carb issues

socaldc

New member
Hey folks I have a 2002 yamaha 15 hp four stroke that is having carb problems . When it starts and is running it spews gas out the top overflow . I have tried cleaning it out and checking the needle valve . Looks fine to me . I am stumped . Any help would be great . Thanks , D
 
Re: Yamaha four stroke 15 hp carb issues

Time to revisit the carburetor cleaning.---------------The float and float valve are not doing what they are supposed to.
 
Re: Yamaha four stroke 15 hp carb issues

I have done just that . Actually like three times . The float and needle are fairly new . I must be missing something .
 
Re: Yamaha four stroke 15 hp carb issues

I tried setting the float per the manuals specs . Kinda strange bending that plastic to get an adjustment . Also seems kinda hokey the way the needle valve dangles around sort of loose . Too much play for my liking .
 
Re: Yamaha four stroke 15 hp carb issues

The book calls for 10mm from flat edge of carb to flat / seem area of float . Is this correct ?
 
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