M Series/Mountain Cat Pre 2011
I've recently purchased a 2003 MountainCat,600EFI.
Since it came from out west, I knew I needed to re calibrate the clutches for riding in Minnesota.
On the drive clutch, I added the Yellow/Green spring and added the 746-539 cam weights which are 53 or 55 grams. The clutch is supposed to kick in...