Hi guys, I'm thinking of picking up a buddies 1986 cr250. Apparently it's engine was rebuilt about a month after it stopped working. He wants 500 bones for it but I'm not sure cause the engine won't run. It has a pipe and some other stuff done. The engine put out 60 psi on a compression test after a few kicks. I don't know if that's good or bad. There is a spark but my buddy thinks it's weak. If you think that the 60 psi is bad or that this is going to cost a fortune, let me know. Thanks guys.