Keen to see the differences across these.
EagleMike does sell a shim set to allow the user to add tension to the assembly and reduce the tendency of the sprocket to walk back-forth on the output shaft (that slop increases the wear on the shaft -and big-K don't make these anymore).
I had taken to inserting washers between the keeper place and the sprocket: the sprocket was then forced inward up against the collar on the shaft, and the keeper plate was then forced outward against the splines on the shaft.
This technique appeared to work well on my original '95 Barbie Bike and there was very little play between the sprocket and shaft when I sold it with 45k miles on it (thanks to the great recession :-( ).
Using the same approach on my Orange '87 playbike with the '89 motor and it has worked well there too. Now at about 40k miles, and has the 685 kit, KLX, opened airbox, ex cam on tooth advanced, 09 head pipe and Lexx exhaust.
More than one way to skin a cat, so I'm always interested in the considered opinions of others.
Last edited by foo; 01-06-2020 at 01:37 PM.