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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Air Striker Carb
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[QUOTE="BRush, post: 675514, member: 18729"] Comparing the air striker carb and the RB mod is comparing apples to oranges. A 38mm carb, air striker or otherwise on a KDX would will just trade off low end performance for top end. Overly large carbs have a negative effect on low end performance. It's a trade-off. That's why trials bikes have smaller carbs than motocrossers and why the 220 KDX has a 33mm carb while the 200 has a 35mm. The RB mod attempts to mitigate that trade-off. It does this (primarily) by installing a divider plate which allows the modified PWK to act as sort of the carburation equivalent of a bifocal lens. At low throttle openings, the area of the carb bore is effectively reduced. This keeps the fuel charge moving faster and improves low end response. When you whack the throttle full open, the whole area is again available to allow the motor to rev out. When jetted properly, it works very well. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Air Striker Carb
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