I just took my 1990 Moto-4 250cc engine in to get cleaned up (soda blasted). Unfortunately, the shop pulled the covers I had for the intake and exhaust ports, crankcase breather and starter opening. So, it looks like a full tear down is necessary.

Any recommendations on engine shops. I don't mind paying a bit as long as the shop does a great job. This ATV has made it 20 some years with my abuse and I would love to have my kids ride it in a few more.

Thanks