All right, guys, let me get a couple of things straightened out here and ask a couple of questions. The Generac 7.8 hp engine has a 3/4" shaft but is NOT tapered. It's approximately 2&1/4" long and has a slight flare where it goes into the engine. I'm guessing that I can use a stock 3/4" clutch and slide it onto the shaft. I THINK it'll work as long as once I get it in alignment with the sprocket on the back wheel and drill a slight dent into the shaft for the set screws. What do you guys think? I'm just brainstorming here. The chain I took off the bike measures 52" without the master link. I've looked at a few chains online and they mostly say "3 feet with one connector". This will not work for me, so where the heck can I get a chain with the proper length?