o/k thanks guys for the good info.i will bolt the ryobi flywheel on the homey 33cc saw motor and save some time and $.I`m going to fly my tf stinson reliant with it as the ryobi did`nt quite have enough poop for me.this homey is an easy conversion and if hurry up and get it bolted on my plane i can get a couple of flights in b-4 the weather gets nasty.thanks again.