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Honda MX & Off-Road Dirt Bikes
Misc two-stroke jetting and CR250 questions
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[QUOTE="dirt bike dave, post: 927563, member: 18302"] My '99 CR was well jetted for 'normal' on and off the throttle riding, but I suffered a big end failure after rolling off the throttle after a sustained 2 mile blast of top gear WFO on a road. The bike was running perfectly all day right up until it went boom. My theory is that sustained high rpm/heavy load running is geneating much more heat than normal. When you roll of the throttle and don't pull in the clutch, the very hot motor is still turning 8,000+ rpm, but now has no lubrication, and can fail very quickly. You are much more likely to do this riding roads or farms than on an MX track or normal trail. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
Misc two-stroke jetting and CR250 questions
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