I went to the track today and my bike would not start so I tried three spark plugs and still would not work so I got into the electrical parts and made sure all my wirers were ok and they were and it still would not start. So I do not no what to do. In addition, has any one with a 1990 yz125 had this problem before?
just to eliminate the obivous ones they are new plugs ? fresh gas not some that has been sitting around for a year and it mixed ? clean air filter ? i have seen a bike not start because one was so filthy .
If you have spark and are sure of it, then fuel is the other white meat. Make sure the carb isn't clogged and gas is coming through. Check the air as well, start from there. good luck.