Eldon's sheet said remove the cams to change shims but after I
> mentioned that a few people thought I was an idiot (obviously not
as I have
> a KLR). I understand you can loosen the can retaining bolts and
using a
> nice magnet and screwdriver coax the shim out. Been there done that
on
> other bikes.
I remove the cam caps and tie the cams up out of the way with some
shoelaces. Be careful removing and replacing the locating pins, like
don't drop them into the motor. I use a small bit of RTV on the left
side of the gasket.