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Old 10-17-2012, 10:43 PM
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cgaengineer cgaengineer is offline
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Join Date: May 2007
Location: Winder, GA
Posts: 15,782
Originally Posted by kawakx125 View Post
probably not worth it at all for one of these motors, I am referring to dirtbikes, and especially high performance 2 strokes. life expectancy of piston/rings isn't long at all and the jetting is usually run on the ragged edge of too lean. it's not unheard of to rebuild em every season. theres a couple companies that make sleeves for them and a few places as well that run cylinder exchange programs, send em the bad one they send you a fresh resleeved one. given the volume they do it's not that expensive, definitely alot cheaper than a brand new cylinder.
The bottom ends don't last long's really great when the bottom end needle bearing make there way through transfer ports and inside the cylinder of a freshly rebuilt top end.
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