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exhaust install

Old 06-25-2008, 04:22 PM
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exhaust install

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looking for info. just installed leo vince high mount exhaust, now at around 4000rpm motor starts to back fire and stumble a little, not yet jetted or the tps sensor reset. sounds like the motor is lean, have a track day 7/1 and no time to rejet before then,thought about raising the needles to see if it would get me through the track day. stock exhaust pegs dragg badly so i need a fix for this asap. any help would be great. thanks
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Old 06-25-2008, 04:35 PM
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I have the same setup, no jetting, stock air....no stumbling. I'm at 5100' here.
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Old 06-25-2008, 05:24 PM
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pair has been taken off and air box plugged, reeds flipped and capped small line to carb. #10 hose capped ??? i'm near columbus ohio
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Old 06-26-2008, 05:17 AM
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Shimming the needles is a good start and will likely solve your problem.
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Old 06-26-2008, 06:59 PM
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thanks !!!
I shimmed the needles (.030") and it made a world of difference .
thanks again for the advice this will get me thru the track day.
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