CR250 Cylinder Repair – Durable Big-Bore 2-Stroke Resleeving
The Honda CR250 is a torque-rich, big-bore 2-stroke engine that places high mechanical and thermal loads on the cylinder.
Deep scoring, damaged plating, or repeated replating repairs can reduce reliability and limit future service options.
MotoMonk provides a dedicated CR250 cylinder repair and resleeve service, installing a model-specific cast iron sleeve that delivers durable port edges, stable bore geometry, and long-term serviceability. This solution is especially effective for high-output 250cc engines where port durability and repair flexibility are critical.
YOUTUBE Video how we sleeve a Nikasil cylinder.https://www.youtube.com/watch?v=Ma68gdH2QQY&t=190s
Why Choose MotoMonk for Your Honda CR250 Cylinder Repair?
Extensive experience with Honda CR250 engines and large-bore 2-strokes
Resleeving focused on durability under high load and temperature
Accurate bore geometry for consistent piston fit and power delivery
Future serviceability through standard oversize boring
Honda CR250 Cylinder Repair / Resleeve
✅ Cylinder sleeved with a model-specific cast iron sleeve
✅ Precision machining for sleeve installation
✅ Port chamfering after sleeving
✅ Final bore & professional honing on our Sunnen honing machine
✅ Cylinder deck machined for optimal gasket surface👉 Optional: Porting services are available upon request. Please contact us before work begins if porting is desired.
What’s Not Included
All parts (including the sleeve)
Piston, rings, bearings, studs, gaskets, seals
Power valve service, cleaning, or repair
Shipping & handlingCylinders must arrive fully stripped. Studs, gaskets, power valve components, and all attachments must be removed. Cylinders received assembled will incur additional labor charges.