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05 CR250 Bore Specs

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I just bought a used 05 CR250 that is pretty worn. Cylinder wall look good but I would like to know if someone can let me know the bore

specs. I'll be looking for a manual this week. It would be nice to know the bore is OK, I'm dying to ride this week.

Thanks.

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I just bought a used 05 CR250 that is pretty worn. Cylinder wall look good but I would like to know if someone can let me know the bore

specs. I'll be looking for a manual this week. It would be nice to know the bore is OK, I'm dying to ride this week.

Thanks.

05-07 Cylinder I.D. specs:

A 2.6141 - 2.6244

B 2.6138 - 2.6141

Now the manual says 2.615" is the service limit for both A & B cylinders, sounds to me like a misprint

Other specs

Cylinder to piston clearance is 0.0020" - 0.0026" and service limit is 0.004"

Ring gap is 0.016" - 0.022" I think service limit is 0.026"

I know a new A piston O.D. will be right at 2.612 out of the box (OEM)

Edited by AXAxiom

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I just decided to go with a new A piston and cylinder. I got a decent enough price to make it a liitle better than waiting for MT to replate. They had a 7-10 day turnaround and I figured 6-8 day shipping process. I also downloaded a manual for $8. That has helped tremendously.

Thanks for your reply.

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