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Honda MX & Off-Road Dirt Bikes
Misc two-stroke jetting and CR250 questions
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[QUOTE="bikepilot, post: 927414, member: 56976"] I seriously doubt that your jetting was the cause of the seizure. When riding in sand duens and desert stuff I'm wide open most of the time. Perhaps you had a head gasket go bad which leaked coolant into the cylinder (would explain the clean piston crown). Just an idea, but something to think about. In my experence, if the main jet is too lean, you will notice the power fading after a bit of hard running (I usually noticed it on the second lap in harescrambles - 2.5hr race, 7 mile laps). Even with it lean enough for the power to fade and the plug to be very light it didn't lock up. what did your plug look like? any indication of being lean? 32:1 should be fine, I ran it (yamalube @ 32:1)for a month of duen riding without trouble:) good luck [/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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