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Dirt Bike Brands - Other
97 RM 250 Rebuild
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[QUOTE="berno11, post: 658995, member: 16521"] If your fouling plugs repeatedly I doubt its because of a worn top end, though it never hurts to freshen it up. I have owned a 97 rm250 since it was new. Maybe you can learn from my suffering :) I had a stator go bad after 3 years. It would actually foul plugs while riding because of this. I would measure the resistance of your stator to see if its within specs if it fouls out like this. Other fouling problem I had was a worn needle/main jet. It would foul a plug every time it was shut off long enough to cool down a little. Last fouling problem I had was a leaky float needle and seat. (dripping from the vent hoses) Unfortunately the seat is part of the carb body itself. The needle is rubber tipped and replaceable. My seat was worn out of round so bad I had to replace the entire carb. A new needle did not help stop the leak. http://www.eric-gorr.com/techarticles/mxbooktun97.html You may want to consider modifying the power as described in the above link. I noticed a nice boost in top end and overrev after doing this. Good Luck [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
97 RM 250 Rebuild
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