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View Full Version : 250r cool head/jetting problem



Troy86250r
04-07-2004, 04:08 PM
I just installed a pro design cool head w/ a 21cc dome on my bike, and my problem is I cant get this thing jetted in. Before the cool head I had a .380 main jet, and now I have a .500 and its still WAY too lean. I was told to check for air leaks, but I never touched the intake when I put the head on, and I looked it over everything seems to look alright. Any info would be greatly appreciated.
Thanks