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Suzuki MX & Off-Road Dirt Bikes
Can I De-Tune my 03 RM250?
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[QUOTE="motometal, post: 739200, member: 24727"] You could retard the timing, but this would probably take away low end (as well as midrange). If the power valve opens late (more preload), by the time it opens you will be closer to the peak of the powerband, and it will hit harder. Conversely, if it opens sooner, the tuning at that rpm will be less than optimal, softening the power delivery in that (mid) range. As the rpms rise, the system gradually comes into tune with the valve open the whole time. You won't hurt anything by tinkering with the preload setting, give it a try. Don't overtighten the two screws holding it in place. [/QUOTE]
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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
Can I De-Tune my 03 RM250?
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