utrax42

Member
Jun 2, 2007
16
0
rebuilding my dads 2003 KX250. the head has a burn pattern on the exact one half of the exhaust side. No burns in the dome at all though. What does this mean? Is this a lean jetting issue? He does overheat a lot on one nasty steep/wet trail. Thanks for the help guys. :cool:
 
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