jadamy
05-26-2012, 05:15 PM
I have a 1990 lt250r quadracer that I just had a full motor rebuild on. The bore is stock, and the bike has an fmf pipe. I'm having trouble jetting the bike right now it has a 270 main. like I said its a stock motor with fmf pipe. does anyone else have a familiar set up or know where is a good starting point. any help would be greatly appreciated!