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bad midrange on friends 06...

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my friend just rebuilt his top end and put a hot cam in it, the bike idles and accelerates great but about mid throttle it has a major bog then picks up again never had this happen before so it has to do with the cam any ideas

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What compression piston did you put in? what about jetting.If your boggig at mid throttle could you be leaning out? drop the clip on the needle.

good advice :applause:

i agree...rember the needle circuit overlaps with the main jet circuit..but at 1/2 throttle it is mostly the needle circuit....dropping the clip will raise the jet needle out of the needle jet, letting more fuel out through the main and through the the needle....

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i beleive he put a stage 1 in it, ill ask him tommorow and he put a stock piston in it, everything is the same except cam

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