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my 04 YZ250F bogs and bacfires

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i have a 04 YZ250f and it starts right up but when i try to give it some thorotle it bogs and when i let off it bacfires can someone please help i really would like to ride this beast

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Sounds like a clogged up carb or no fuel getting to it. Has it been sitting all winter with old gas in it?

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Could be a stuck hot start plunger too. Will create a lean condition like you stated.

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yeah it has been sitting i cleaned the carb and changed the gas and it still did the same thing the only thing i did not do is check the pit cock could that be the problem maybe it aint letting the fuel through

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i just had the same prblem with my 07 yz450 i just took the carb off pulled all the jets out blasted compressed air through every orfice put everything back together and it ran fine. while you have the back of the bike off and the shock out i took the extra 10 mins to grease the linkages. why not get that out off the way. well good luck.

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