Question about 2003 Yamaha YZ 250

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Kick start wont move - 2003 Yamaha YZ 250

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Oooh that's bad, there are a couple of options. The best case senario is that your carburator floats got stuck down allowing the fuel to fill up the cylinder and exhaust pipe. This creates too much compression for the piston to move inside the cylinder. You can check this by pulling the spark plug (MAKE SURE THE BIKE IS OFF!!!) then kick it over. If fuel sprays out of the plug hole then you're in luck. If you don't turn the bike off first, the spark plug will ignite the gas squirting out of the hole and catch on fire... I know from experience. Tip the bike over and let it drain out of the exhaust and plug hole of the cylinder. If the kick starter will not move with the plug out then it's time to remove the flywheel cover. With the flywheel cover removed and the plug out, try turning the flywheel. If it turns then the kickstarter gears are jammed or broken. If it doesn't turn, then the piston or the crank is seized. Good luck.

Posted on Nov 19, 2009

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