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WB Alum Pro for 05 CRF250R

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Hey all,

I switched over to the WB Aluminum Pro exhaust, and put in the jet they sent me and changed the clip to the recommended setting. The bike is faster, I can really tell the difference, but when I crack the throttle really fast, it wants to pop, or flat out shut off.

Is it running too lean? I checked my plug and it look spot on color wise, so I thought I would get yalls opinions and ideas. Thanks in advance

MXToeknee

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Hmm, Im not really sure on this one, but maybe its just the accelotor pump cover. Because it sometimes does that on mine too if i crack it really fast. Thats the only thing i can think of.

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I don't know what they were smokin when they decided what jets to send, but my Carbon pro came with a way too lean main too, I didnt even think of putting it in. Try going up like 2 or 3 jet sizes from what they send especially if you removed the backfire screen on your air filter

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