The Namura NX-30080-4K Top End Kit is a complete replacement solution for Suzuki RM80 two-stroke engines from 1991 through 2000. Designed with a 48.43 mm piston size and an 11:1 compression ratio, this kit includes the essential components needed to refresh the top end and support dependable engine performance. The kit contains a piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit.
The piston is manufactured using Namura’s hypereutectic casting process, which increases silicon content to help reduce expansion, improve wear resistance, and withstand elevated cylinder temperatures. Its MOS2, or Teflon/molybdenum, coated skirts use a rolled-on application process that creates a durable bond while helping reduce friction, improve heat transfer, and minimize the risk of cold seizures. Machined smooth heads help reflect combustion heat and reduce carbon buildup, while the anodized dome improves heat resistance and durability.
This Namura top-end kit is intended for direct fitment on 1991–2000 Suzuki RM80 models when used with the appropriate cylinder preparation and installation procedures. Verify the bore specification, compression ratio, and engine condition before installation. Manufacturer part number NX-30080-4K and vendor part number 185-30804 identify this specific replacement kit.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- 48.43 mm (+1.00 mm) piston size with an 11:1 compression ratio
- MOS2 Teflon/molybdenum coated piston skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk
- Machined smooth piston head helps reflect combustion heat and reduce carbon buildup
- Anodized piston dome improves heat resistance and durability
- Hypereutectic casting process provides reduced expansion, increased wear resistance, and improved high-temperature performance
- Fits 1991–2000 Suzuki RM80 models
- Brand: Namura
- Manufacturer part number: NX-30080-4K
- Vendor part number: 185-30804
Fitment:
1991 Suzuki RM80
1992 Suzuki RM80
1993 Suzuki RM80
1994 Suzuki RM80
1995 Suzuki RM80
1996 Suzuki RM80
1997 Suzuki RM80
1998 Suzuki RM80
1999 Suzuki RM80
2000 Suzuki RM80
2001 Suzuki RM80