Maintenance & Technical > KX450F / KX250F

06' 450F Hard to Start

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Scott Marks:
O.K. Put the bottom end back together, so we have a complete new motor from the bottom to the top. Kicked and kicked and nothing! Put on a new flywheel and she cracked right off. Ran a hare scramble on Sunday and ran great, started every time. No one can figure out what went wrong with the flywheel, but some guys say it can happen. By the way the new flywheel does not have enough magnetic force to hold it to a tool box either, so don't go by that. Weird deal, but I sure want to share with everyone as it might help another poor soul out there fighting the same problem.

hughes:
That's cool that you bike is back up and running but man that's a strange issue for a flywheel. You would think if the mangets were weak then they should be weak all the time regardless if you are kick starting or push starting. If the center manget which has the pick up marks moved then the timing would be off all the time. Strange man very strange. Glade your bike is up and running.

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