Every once in a while me and my brother, mainly me hit nuetral while shifting from 1st to 2nd. I have already had the tranny apart and checked every thing out, it was all fine and up to spec. My bike is a 83 CR125 and he has a 80 KX 80. I was wondering if any one knows if these years/bikes are known for shifting problems, or if anyone elses does this on other bikes? Please HELP. Thankx