Problems... help please

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05raptor350se

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Aug 20, 2005
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Pittsburgh PA
Ok I just went riding today for the first time with the new pipe and jetting and intake... I raced my friends stock 350 raptor and he still beat me... anyway my problem is when it get it revving high in the gear it detonates (I think thats what you call it) it makes this popping sound and just sucks... what could be causing this problem?? too rich? too lean? I dont know so help please

thanks

p.s. I did the jetting per the dynojet manual
 
how did you test your plug just let it idle and then pull the plug. the right way to test a plug is to warm the engine up and then. i always start about 200 yards from the shop and start going wide open, then i hold it wide open for a little bit through some gears and then i pull the clutch and kill it. and coast into the shop. then pull the plug and that should be more accurate
 

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