It needs to be rebuilt. It is down on power. I have owned it for 4 years and havent rebuilt it yet. I stripped 5th gear, a week after I bought the quad and I havent fixed that either. To be honest, the quad is nasty fast 1-4 that I never could get in 5th anyways, so I never fixed it.
My dad has a 89 fully built 250r. My quad is much lighter then his.
Its the fastest quad I have ever ridden/owned. Its a workout just trying to keep it straight.
and I have owned a 450r, a few 250r’s including a fully built lonestar 250r that had a CT350 motor on it.