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jdswanny

YZ 426 Spewing Gas from Carb

6 posts in this topic

01- YZ426

In the last few months the carburator will spew gas out of the overflow hose? after you kick on it a few times and/or after you have ridden for a while and stop to rest. It will even do it if the engine is on while stopped in low rpm. Any suggestions.

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The float is probably stuck, or there is some dirt or junk in the little needle valve assembly that the float opens and closes. I would take the carb off and pull the pin that the float pivits on, then blow out the place where the needle travels up and down with some compressed air.

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There is a rubber o ring inside the carb that will wear out and leak gas. The deterioration of the o ring is much faster with race gas. Replace the o ring and you should be ok. Happened to me a couple of weeks ago.

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You will also want to check the float height while you are in there. Hope this helps.

Josh

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