For maximum effect our billet power valve is 1/2
inch wider than stock 800 Yamaha to regulate the huge exhaust port.
A great feature is pins through the bellow caps to monitor power
Rear mounts anodized billet 6061, front 3/16"
steel nickle plated.
Transfer profile CNC'd for perfect cylinder match.
Base 1200cc package includes:
2 Billet Cylinders
2 98mm Pistons
New CNC'd cases
True and Welded Crank
2 Power Valves Assemblies
Orings and Hardware
Please Call for details.