- Apr 9, 2018
My idea is to build my own engine. These bike engines are quite simple. Plan is build a foundry and cast the crankcase and tap the holes to 1/4 and maybe 5/16 instead of metric. I'll get a drill press and probably belt sander. I already have a grinder but it needs a new spindle and stone. Then machine a crankshaft from 41-40 steel and source a rod from an 80cc dirtbike or such. I also planned on using jap bearings. Seems like a good beginner machinist project. I could get the port timing right too unlike the china ones. Some people might ask why not just run the regular china ones. They wouldn't understand. I don't do this because I can't drive or got a dui or am too young, its kind of an annoying hobby actually. I have been thinking of getting an actual motorcycle lately. Looking for a 250 cafe racer but didn't like the ones I saw. Too much chrome or too old looking. I saw a china one that's 1,700 but with how crappy mb parts are I don't really trust it.