i found this realy cheap 2 cycle 4hp 3600rpm tecumseh
but it has a steped shaft, and i dont know if i can get a 5/8 inch clutch on here because there is only .9 inches of 5/8 shaft
here are the specs
0.6688" dia. x 1-1/2"
5/8" dia x 0.9"
any body got some suggestions?