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View Full Version : 300ex jetting


tolson
05-03-2004, 12:51 PM
:confused: i have a 2002 300ex with a white bros e-series and a k&n filter. does anyone have any jetting suggestions?
redrunner
05-03-2004, 07:22 PM
This is the best advice i can offer!
tolson
05-06-2004, 10:26 AM
i'm gonna try a 125 main jet.
300exOH
05-06-2004, 10:37 AM
I have a 135 main in mine with a Sparks X4 and a UNI filter and a modded airbox lid. 125 may not be rich enough for you but it's a good starting point. You may want to pick up the next couple sizes and try them out. Your plug should be a nice tan color when you get it right. Good luck.