I am interested in adapting a small engine starter/generator such as might be found on a golf cart or lawn tractor to fit my Lincoln SA 200 welder (old enough to never have had a starter - or ring gear). I have
in mind to simply drive the crank pulley with a synchronous (toothed) or v-belt. The engine is a low compression four cylinder flathead of about 162 cu in producing something like 30 hp and is not hard to turn over with a hand crank. Does anyone out there know what sort of pulley
or gear reduction is used on those golf cart starter/generators. I suspect that the starter/generators don't spin nearly so fast as a typical automotive starter, nor is the driven pulley nearly so large as
an automotive ring gear.