Just would like some input if running my r out of gas at pretty high rpm could cause this? I have a 330 esr 38mm a/s 52 pilot and 180 main. stock cdi and coil. br8es, ERS trx 9 pipe. Race dome running vp110 with 927 mix. Do yall think that caused it or do i need to look for other problems? Oh yea i pressure checked it less than 5 hrs ride time. it was good. It has just been rebuilt with new everything crank and bearings and all new seals. It burnt a hole and melted the top of the piston down to top ring on the exhaust side of the piston. Thanks any input would be appreciated .
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