I've done a few different two strokes with points and such - timed them up and completely rebuilt a few. 70s Rotax for Skidoo sleds; twins. Did points/condensers and times a single Kohler in an old tractor I have; far from an expert, but not my first old motor.
Never had a stuck piston before so, always something new. Thinking I'm going to tie a weight off the pedal and tie off the clutch just to keep some pressure on it while it sits.
I did manage to get the side cover off, and then started on the fan. All the Phillips heads on the bolts that hold the fan there were rusted out, so - I tried to easy out them, 2 out of 4 on the fan came out - gave up on the others for now. The bolts that hold the cover just had the heads break off so, the other end is just rusted in - not sure if they'll tap out the other end of the housing, or what the fix will be there, but - whatever it is it will be new hardware.
Crank will rotate if I lift the cylinder up and down by hand.
Thanks for posting, keeps me interested and it is a reminder whatever the outcome, there is a light at the end of the tunnel. Today I was wondering if I just really like taking things apart … lol (edited)