Xr 650r jetting

I need to know the main jet for an xr 650r with a FmF 4.2 slip on that is uncorked woth a k&N air filter. at a 1000 ft altitude.

Its really going to be a little trial and error... every bike runs a little different.... But use this as a starting guide http://www.xr650r.us/jetting/ ....and fine tune your jetting from there.

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