nothing really off the top of my head. With older bikes you gotta keep an eye on electricals. Little things can pop up like Neutral switch goes on the fritz, especially on the old kaws, clutch switch. etc. Check the fuse box and make sure your wires look good going to it. check your grounds on the frame as well. The motors are strong and if taken care of really shouldnt give you problems. Keep an eye on the head and cylinder and make sure they dont weep oil. other then that have fun.