05' WR450 Jestting

Pulled grey wire, uncorked it, throttle stop, and took out the snorkel in the air box. Now I have some some popping on decel. Any ideas for jetting, Im in Phx, AZ. around 1200 feet. One of these days I'll step up and get a pipe and JD kit.


Decel backfire results from lean condition. Go ahead and step up for at least the JD kit and most of the backfire will be gone. The AIS needs to be removed or plugged for the rest of it.

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