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04 CRf 250r trouble, need help,please help.

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My bike just died the other day riding in the woods the other day.

I was in first gear low in the revs. I tried to move the kickstarter and it was frozen. I took it to my buddies who is more knowledgeable than me and he rotated the engine backwards and it freed up. He checked the valves and they were good. Any ideas? Thanks.

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Likely seized big end rod bearing.. Pull the oil filter and see if there are gold flakes on it from the rod thrust washers.

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99% of the time it's the crankshaft. The connecting rod bearing cage probably broke. The brass/gold looking shavings in the oil filter is the tell tale. Hopefully, it didn't do any other damage, but you won't know until you rip it apart. About 1/2 the time, it destroys the cylinder and the piston also. Can be a costly repair. Keep your fingers crossed.

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