new top in in my sons rm 85. strange thing is if he rides it hard over the weekend track or trails and i leave the bike sit (for a week)it fouls the plug.the bike will try to start then die.i pull the plug out it is dry but black in color.could this need a adjustment on the card to make it less rich .atm there is a b10es plug in the bike. in another thread http://www.dirtrider.net/forums3/showthread.php?p=1340699#post1340699 they tell me to put in a BR10EIX.
not sure if the plug will solve my problem. also i am running the gas/oil mixture 50:1
not sure if the plug will solve my problem. also i am running the gas/oil mixture 50:1