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how many hours on your 2010-2011-2012 ?

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Local A Class, running AMA Pro-Am's in 2012. Had my '12 RM-Z 250 and 450 since Oct, 1, 2011. 250 has 4.9 hours on it, valves havent moved and oil is always clean.(changed every 1.5 hours, air filter changed every ride) Only odd issue I've had with it so far is the kickstarter feels like the auto-decomp doesnt work every 5-6 kicks but has been going away as the motor gets more time on it.

Planning on pulling the motor apart at 15 hours for a high compression piston, new valves with stiffer valve springs, porting the head, and having the transmission parts ISF'd.

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65 hours on 2011 rmz250. haven't touched a thing in the top end. tranny is being built however due to premature wear issues. A level rider

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midpack B level rider 36 hours on mine, only slightly had to adjust valves. everything has been otherwise good, plan on a piston at 50 hours. so far so good

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