I have an 01 rm 125, it runs perfect ive only had it for under 2 months, and it has been a pain to start lately, it would take a billion kicks to start and wait and now its not starting at all, i checked the spark plug it looked like there wus oil all around the top not shure why thats there, but it looked almost the same as my friends 02 kx 100 and crf 150, so if its not my spark plug thats the problem i really dont know, please leave some feedback thanks.