Namura Oversized Piston Kit for 2007-21 Honda TRX420 Rancher Models - 86.98mm - NA-10042-2 2014 Yamaha YZ125 1980 Yamaha XS850

1980 Yamaha XS850

main jets or pilot jets

Part Number: 663M08000

1987 Honda CR125R

2002 Yamaha TT-R90

Namura Oversized Piston Kit for 2007-21 Honda TRX420 Rancher Models - 86.98mm - NA-10042-2 2014 Yamaha YZ125 1980 Yamaha XS850Namura Technologies Piston Kit Namura gives you a higher performance piston without the higher price MOS2 Coated Skirts increase heat transfer and reduce friction to eliminate cold seizures. Higher silicon content reduces expansion rates and increaseswear resistance. Machined Smooth Heads Reflect combustion heat and reduces carbon buildup. Namura piston kits come with the piston, a set of OEM quality rings, a wrist pin, and circlips. Why replace your