I'm rebuilding a mac91 m/c (red/white) and am in need of a flywheel. Does this take a standard or 5 degree advance wheel? As far as I can tell from the info I have found, the part number is 68280. Is this the correct number? Also, the carb is a Walbro bdc22. Are there any rebuild kits available anyw...

Hey Jeff. Thanks for that link! It has all the info I'm looking for. The engine also has a Horstman clutch and a GEM "QT" pipe. I haven't been able to find any pics of this clutch, even from the Horstman website. The body is black with ribs, 3 I believe, running around it. The end cap is aluminun wi...

I acquired this engine from a friend after he told me he was going to chuck it in the trash! After tearing it down, everything looks to be in good shape. Crank assy. looks good. No discoloration on the rod. Bore is 2.165, the piston is 2.158. Cylinder just needs a light hone. When I put one of the r...