Re: Scag sw4814ka repower
The important specs you need are the shaft diameter, length, and keyway dimensions.
Obviously the physical size of the motor will need to fit where the Kawi was mounted and the exhaust will have to be compatible with the space as well. Look at all of those factors.
If the mounting bolt pattern doesn't match the one Scag drilled for the Kawasaki it can be marked on the power unit deck and drilled. My Bunton had two bolt patterns already drilled. The Briggs I bought fit one of them. The power unit deck on these old commercial machines is just carbon steel. Steel drills easily with Cobalt drill bits if you centre punch, use oil, and don't try to hog through with the 3/8" bit first. Start around 1/8" then step up to 3/16" then drill a 32nd larger than you need... 13/32" hole for the 3/8" mounting bolts so the threads don't catch and drag on the holes.