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Dirt Bike Brands - Other
YZ 250 Breakdown Please Help
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[QUOTE="_JOE_, post: 1311835, member: 77507"] If the bike was actually higher compression it would have been achieved by machining the head or cylinder. This is mostly the cause of any detonation if there was in fact detonation occuring. So at this point it needs at least a crank assembly, cylinder, piston and maybe a head or some cases if it gouged them. If it were me I would be cracking the cases ASAP to get the big picture. You can pretty much rest assured the bike will run fine with all new parts. [/QUOTE]
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YZ 250 Breakdown Please Help
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