Question about 2003 Yamaha YZ 125

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Yz 125 2001 model. i went down to the garage and kickstarted the bike she fired up no problem then the engine cut out after a minute now the kickstart is real heavy too push down and will not start, any ideas. thanks

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Sounds like the piston seized.
Pull the spark plug and hand crank the engine if the piston moves up and down with little effort your ok but if you have a lot of resistance top end rebuild needed.

Posted on May 26, 2010


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