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Dirt Bike Brands - Other
Urgent 91 RM 250
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[QUOTE="jsproch, post: 709245, member: 36082"] RM250M, I have a '92 Rm250 that had a similar problem. According to Eric Gorr's book, these year Suzukis are jetted too rich from the factory. I found that the problem was in the slide. The stock slide has a 3.5 cutaway, and it should be closer to 4.5. I would try a 320 main jet. I called and talked to Eric and he explained how to file the slide . You may want to do the same. It made a huge difference(combined with a RAD Valve)! It now runs clean and crisp throughout the rev range. You may want to think about getting a RAD valve. This is absolutely the best mod I have done to my bike. Good luck! [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Urgent 91 RM 250
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