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2004 crf 450

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I have a 2004 crf 450 that I was driving today when it backfired and quit... when I started it back up it will only idle if I give it any gas it will backfire and quit? I took the carb apart and all the jets are clean timing marks also seem to be spot on as far as im aware of.

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Did you check the air jet in the intake bell for contaminants

Is you air cleaner spotless

Is your fuel water free

Yes I checked it all.. it all started when I forgot to turn the gas on and it backfired and quit

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what he said, and you checked jets, but are you positive the pilot jet tiny hole down the middle is clear ? it's easy to see the 8 holes on the side of the pickup being clear, but there is a tiny hole down the middle too like a main jet.

Also need to check for voltage. will need a special adapter for the multi meter to check. need 50vt output. mine was doing something similar and was putting out 35vt

Edited by MELK-MAN

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