I just bought a '93 750 from someone who bought it from another person who had transmission problems. What I got second hand from the guy I got it from is that the previous owner was riding it, stopped and then it wouldn't go into any gear. They pulled the engine and started to tear it down and stopped then sold it to the guy I got it from. I'm getting ready to tear the engine down and do a rebuild. What things should I look for in the transmission? Thanks for any suggestions.