Kit Includes: 
• Piston, Rings, Clips and Pin 
• Top End Gasket Kit by Cometic 
• KPMI® S.S. Black Diamond™ Valves, Stock Head Dia. 
• Dual Spring Titanium Retainer Spring Kit, Which Allows for 0.440” In. and Ex. Valve Lift

 Features: 
• Designed specifically for the performance demands of popular racing MX Bikes and Quads. 
• Pistons designed to maintain the stock compression after the effects of the dished stainless valves 
• 2618 Alloy Fully CNC Machined Piston with performance skirt coating 
• Black Diamond™ Stainless Steel conversion system significantly increases valve durability 
• Lightweight Racing Spring Kit compatible with high performance cams. 
• All of the gaskets, rings, pins and seals required for a top end rebuild

These pistons have been designed to incorporate a domed piston deck, resulting in a high compression profile and offsetting any change in volume caused by valve dishes. While maintaining compression through piston shape, we’ve minimized moving mass in our stainless steel valvetrain conversion by lightening our steel valves. The conversion to Black Diamond™ Stainless Steel Valves offers up to double the life over stock Titanium valves without a loss in performance.

Note:

The piston, rings, valves and pin clips in this kit are designed to work together as a system. They are NOT COMPATIBLE with O.E.M. components and should ONLY be used with the components in this KPMI® Top End Service Kit.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

(1) Piston W/wrist pin

(1) Top ring, (1) Spacer ring and (2) Oil rings

(4) Intake springs

(4) Exhaust springs

(2) Exhaust valves

(2) Intake valves

(2) Exhaust base washers

(2) Intake base washers

(2) Intake retainers

(2) Exhaust retainers

(2) Retaining rings

(1) Head gasket

(1) Base gasket

(1) Exhaust gasket

(1) Engine case gasket

(4) Valve stem seals

(1) O-Ring

Instructions