Ive had 2 of these things, first one I bought off a friend was the original 84 single rad unit, they liked to overheat in hot weather and slow uphills, turned into a stanley steamer. When I bought it, about 3 years ago, the stator was gone, got one from Pacific Yamaha $500 and put it in, hadnt run in 15 yrs, carb cleaned, fired 2nd kick! Hot tip for quiet and performance exhaust mod was to fab on a 96 YZ silencer ( ebay $10) really woke it up in the power department!! and at least as quiet as stock too! Looks nice with aluminum silencer too. Rode it for 3 years, ( mostly back and forth to work tooling around here and there) put on 8,000k, total of 15,000 k and for 3 x more than what I paid ! Was in mint shape too though! Then bought a mint 96, same silencer mods, and it was great too, but only a short trip machine, did an all day Harrison ride, once, then sold it to a friend at work. Get some fatbar adapters and upgrade the bars, some good barkbusters, and they are a great little bike!!