Well...heres whats happening with my warrior

Yamaha Raptor 350 & Warrior Forum

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Well-Known Member
Feb 27, 2005
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Toledo, OH
Since they F'ed it up... they are gonna bore it .020 over and Im getting a wiseco fpr 60 bucks. I think that will take care of everything. The guy tried to tell me that the compression probably blew the head gasket. I told him that I had the stroker kit and ran it for about a half a year...you guys get ahold of it for the port and polish and not even a month later it blows. Why...because they didnt put a pin in that holds the gasket in place, causing it to shift and the piston was hitting it. You can CLEARLY see this by looking at it.