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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
02 CR250 high rpm bog
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[QUOTE="_JOE_, post: 1389847, member: 77507"] If the engine is tight and sealed, as in good compression and passing leakdown, and the exhaust valve is working correctly you can definately tune the bike to run cleanly at any RPM. You might consider a heat range hotter plug if you know you're going to be doing alot of low throttle trail riding, just be sure to take it out before you go ripping it out in the open. Premix ratio is a personal preference thing. Just be sure to stick with it after you're done jetting. Some guys run as much as 20:1 for extra insurance and claimed better ring seal and therefore more power. Some people go as little as 50:1 but that would make me nervous. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
02 CR250 high rpm bog
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