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Old 12-03-2012, 11:20 AM   #2
bored in NJ
Joined: Oct 2007
Location: Andover, New Jersey
Oddometer: 656
Clutches always start slipping in the highest gear first, when they are on their way out. In a lower gear, the wheel is easier for the engine to spin, so it is easier for the clutch to hold on. I don't know much about these automatic clutches, but my first thought would be the springs. My CX500 clutch started slipping only in fifth gear, at higher RPM. Worn plates would have slipped at low RPM also, but as RPM increased, my weak 30 year old springs couldn't fight the centrifugal force. When I took the clutch apart, the plates had plenty of meat on them as I suspected. I didn't bother to measure the spring rate on them, but the new spring where very obviously a lot stiffer than the ones I removed.

1979 CX500
1990 DR350

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Wmako's moped army rides from Jersey to Una-F'n-dilla (August 2010)
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