Join Date: Jul 2012
Location: Fort Collins, Colorado
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tbird88 I would really look at your valves and valve seats as well as checking your cylinder to make sure it is not worn out, these things can make the bike loss power very easily. I work on cars for a living and I know that in racing applications valves can take alot of abuse and not seat correctly or start to pull into the seat not allowing them to seal and allow compression to be lost. Also be sure to check the valve clearance before you disassemble it, it may give you some indications of your problem before you do your disassembly. If your valve clearance is tight then the valves may be pulled into the seats. If they are lose then you could have valve tip wear or rocker arm wear. Good diagnosis before disassembly always makes things easier then hoping after your reassembly that everything is going to work.