i got a 99 rm125. I am running a 170 main jet. I run 40:1 castor 927. my plug seems to be black every time i take it out and fouls often. It smokes a lot. Needing some help on which oil mix to run at which ratio with that jet. I've heard good about CCI and MX2T. What do you suggest. Also what is spooge can you help me out and tell me what i need to do to see if i have any.
Apreciate all help/
thanks
Apreciate all help/
thanks