I've got a 96 CR125 that constantly eats plugs up. I've had it at 2 shops where they insisted it was a fuel problem and overhauled the carb. They've tested the stator, the coil has been changed, and still the bike fouls a plug after a 1/2 hour of riding. The plug is a nice chocolate color but with not an ounce of spark left. You can immediately throw another plug in it and go for another 1/2 hour. Oh and the crank seal has been replaced on the flywheel side. Anyone have any ideas?