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Popping on secel and stallinh at idle after muffler repack

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I have an 08 yz450f. Bike ran well the last time I rode. I re packed the muffler, and also rtv'd the pipes. The bike is starting to stall when I let off the throttle now. It seems to have more popping on decel than usual. I packed the pipe the same way I always have. Not to tight and exactly how fmf instructions say. It almost seems like I am having pilot jet issues?

Edited by sk8bd117

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