My nephew just brought a 1990 KX 125 to my garage with a fresh top end that needs to be put in, so i did all that for him and got the pipe on and all, now the silencer that the kid gave him that was off the bike deffinetly does not fit, the big problem was the box of parts that were not on the bike, the silencer was in that box. I have a few friends with KX's and have stock and aftermarket pipes sitting around but none of them are 1990 125's. Is there another year silencer that will fit on this bike from 91, 92, 93 etc?

Thanks in advance for your help

 

Not sure but welcome to KF.