clutch toast
I havent had any problems with my clutch that I have noticed, Knock on wood. i have done oil changes and are using Yamalube 4 for oil....One thing though, ( I came from a 2 stroke 125), I had to alter my riding style somewhat in that on a MX track, when I come to a berm, I down shift before, and take the same gear out, usually 2nd. thus I dont pull the clutch in like i would when on the 125 and let it out half way thru the berm..My buddy is orign owner of a 99 yz400 and he has no problems with his clutch either and hasnt replaced it either. So I am sticking to twice a month oil changes, at the minimalist, decent oil, and moderating the clutch usage, shifting on the straights is more controllable and I will probably heed the advice of the last post and pull the clutch in and hold it, to circulate the oil, that makes sense since the oil is used universaly throughout the bike. which leads to the idea of changing the oil more frequently since there is higher change of debris to be circulating... Just my opinion...