my buddies first bike was an '82 Maxim. I think it was the 650 as well. Bike was awesome for a learner bike, especially cause the thing was running and had no issues for $400. I think all we ever replaced on it was the throttle cable and battery. His lil bro bought it off him and rode it another 10,000 miles for a grand total of 60k until he finally raped it enough to blow a head gasket I believe is what he said