RM85 Cylinder Repair – Precision Small-Bore 2-Stroke Resleeving
The Suzuki RM85 is a high-revving youth race engine that requires accurate bore geometry and durable port edges to perform reliably. Cylinder wear, scoring, or damaged plating can quickly reduce power and consistency.
MotoMonk provides a dedicated RM85 cylinder repair and resleeve service using model-specific cast iron sleeves, professional finish honing, and properly chamfered ports to restore correct clearances and long-term durability.
YOUTUBE Video how we sleeve a Nikasil cylinder.https://www.youtube.com/watch?v=Ma68gdH2QQY&t=190s
Why Choose MotoMonk for Your Suzuki RM85 Cylinder Repair?
Extensive experience with small-bore 2-stroke race engines
Precision resleeving with strict clearance control
Durable port edges to protect piston rings
Clear inspection feedback before machining
Suzuki RM85 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.