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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
YZ-250F 2003 Blown Cylinder Head
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[QUOTE="Rich Rohrich, post: 1079395, member: 16241"] It's possible that the main bearings are worn, but they would have to be really worn to allow that degree of piston movement. I'll bet your statement above is probably why it broke a valve. You can't ignore the service intervals indefintely without paying for it at some point. It's a 13,500 rpm RACE ENGINE, it's not a John Deere garden tractor. [/QUOTE]
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Which ocean is California closest to?
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
YZ-250F 2003 Blown Cylinder Head
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