Ive got a 1996 KX 250. Im running 45:1 and Im fouling plugs like crazy. The bike starts fine and rins fine for a while, but if I park it for 10 minutes or so and start it back up I can get about 1/2 mile from the truck and it fouls the plug. I have the Keihn Carb with a 160 mainjet in it. Im in Texas where it around 100 degrees and 65% humidity until October. What main jet do I need? My buddy is running a 162 in his KX 250 but I would think that would waste more plugs. I could be wrong though.
Thanks,
Jason