Is it a bike engine originaly or is it from some kind of yard maintance or snow thrower?
...It looks like nice cooling fins and the muffler? (on the right)looks like it would be very quiet...Befor I was 10 (1960)dad had found a (2 cycle?) called a puma or panther lot sure,I made an atempt to start it and got maybe 5-10 seconds out of it and it had a large mufffler and was very quiet the short time I had it running ......................................If it has a oil fill and poss.drain then it is poss 4 cycle ............I need to get my daughter ,the typed lines are going where-ever ,I've pushed something I shouldnt have again
I'm here ,(incert button?)(I can only type w/2 fingers so I dont know how I pushed it,cat must have helped me again),,any-way,,,The thing from the 1960 was a mower ,was good looking,and lite weight
It looks very much like the 49-50cc 2-stroke used on some Harbor Freight tools and available from monsterscooterparts.com and others. IF it is THAT engine it has favorable reviews from users here.
Since my first post here, I've logged over 100 miles on a similar engine on a Friction Drive setup. It's actually a decent engine. It's loud and "buzzy" like other 2 strokes but has lots of power. The engine handles very well and starts good hot or cold. "monsterscooterparts.com" sells a bolt on tank, not sure if it would interfere w/ your gearbox however. It's Chinese but I think it's a pretty good lil' engine.