I bought the cheapest 5 speed engine i could find, it’s in a rough state but should work after a restauration. It’s had a hard life since 1967, maybe as a motocross engine?
I will rebuild everything, a bit of aluminium welding, thread repairs, flattening the mating surfaces, new bearings, seals, crankshaft etc.
The setup will be a 6,25 HP replica, 40 mm cylinder, 20 mm Bing, 32 mm cigar exhaust.
Lets see the progress so far, remember to look for picture comments and check back for more updates in the future.