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02 CRF450

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I have a FMF Ti exhaust(rear section only). This is a nwe problem as I have had this bike since new with this exhuast setup alos. The bike idles fine for a while then its sounds like it pops and dies. I am still running stock jetting. Does seem like a jetting issue or possibly something else.

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Check the fuel flow to the carburetor and clean the float bowl, rechecking the float level. Clean the pilot jet and spray carb cleaner in the passages. Adjust the idle mixture screw 1/4 turn each direction to see if there is a benefit in idle speed too.

Hope this helps,

James

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