Namura Standard Bore Top End Repair Kit Size B for Honda CR250R 1992-1996 66.4mm
Namura Standard Bore Top End Repair Kit Size B for Honda CR250R 1992-1996 66.4mm
FREE, Fast Shipping on all orders!
Namura Standard Bore Top End Repair Kit Size B for Honda CR250R 1992-1996 66.4mm
This top end repair kit rebuilds the cylinder assembly of Honda CR250R two-stroke motorcycles, providing piston, rings, pin, and bearings to restore lost compression and power. It is designed for the 1992-1996 CR250R and includes size B components with a 66.4mm bore.
Overview
The Namura Standard Bore Top End Repair Kit Size B is a complete piston and ring set designed for the Honda CR250R from 1992 to 1996. It replaces worn top end parts to revive engine performance and reliability. This kit is a direct-fit solution for riders wanting to refresh their top end without machining.
Built For Performance
- Premium 66.4mm piston with advanced skirt coating reduces friction
- Moly‑coated rings provide excellent cylinder seal and longevity
- Precision‑ground wrist pin and c‑clip bearings included
- Size B grading ensures proper clearance within factory specifications
- Kit includes both needle bearing and thrust washer for complete rebuild
Fits These Machines
- for Honda CR250R 1992
- for Honda CR250R 1993
- for Honda CR250R 1994
- for Honda CR250R 1995
- for Honda CR250R 1996
On‑The‑Job Use
- Motocross track racing requiring high‑rev reliability
- Off‑road trail and enduro riding demanding consistent power
- Rebuilding a high‑hour engine to restore original performance
- Competition or recreational two‑stroke maintenance
Specs At A Glance
| Bore Size | 66.4 mm |
| Size Grade | B |
| Application | Honda CR250R 1992‑1996 |
| Engine Type | 2‑Stroke Single Cylinder |
Good To Know
Q: Do I need to rebore my cylinder for this kit? A: No, the Size B piston is designed for a standard bore cylinder that is within factory wear limits. Measure your cylinder before ordering to confirm it still meets spec.
Q: Does this kit include a gasket set? A: The kit contains the piston assembly, rings, pin, and bearing but does not include a base gasket or cylinder head gasket. Those should be purchased separately for a proper rebuild.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
Get it between -
