PM me with your email address and I’ll send you the two pages out the manual that you’ll need. Somewhere I have a Rotax piston stop and the fixation tool for the older clutch drum with holes. Both have never been used if you’re interested. I was never in favor using the piston stop tool, as there is a better tool, but the manual does say to use one.
In addition, you’ll need a deep well socket to remove the nut that holds the gear on. Believe it’s an 1.5 inch and I got mine from Auto Zone. It will help if you have the face of the socket ground down flat to properly engage the nut. A long breaker bar and Loctite are the only other tools needed.
LAD Specialties / tony kart / rotax / kt100