[caveman576]

just put kibblewhite stainless steele valves wiseco piston and a hot cam in my crf 250r. its running hot and blowing coolant and steem out the overflow hose. the only thing i can think of is the head gasket but im sure we got it on right. any suggestions

[Asmith]

check the oil? coolant mixing with either side?

Jetting? What are your specs?