Most all engines have the same footprint (mounting holes), Things to look for on a replacement is;
Crank diameter and length.
Throttle control (integrated choke or separate).
Charging system output rating.
New engine muffler clearance in frame.
If you match the above items the only issue is a few changes on the wire harness to hook it up......
Originally Posted by piston slapper
You never learn anything until you admit you don't know it all...
"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!