by Coastal » Fri Jun 15, 2007 8:20 pm
On my 2006 CRF250X, the Z-Start Pro required a bit more reduction of a casting flange than indicated in the instructions (I have no idea if that is required for the R). I discovered that after looking at the extended wear pattern on the inside of the cover. Another observation (possibly relating to your situation) is the fact that the thicker gasket can allow you to easily put too much strain on that pathetically weak clutch cover. If you didn't use a torque wrench and went with what 'feels right', that could certainly explain it. I wish mine would break, then I could justify another purchase to W.