TKRJ Yamaha RD 350YPVS Piston Kit 0.50 AY0962X

The Yamaha RD 350YPVS is a high-performance masterpiece that demands absolute precision. When your engine loses its crispness or compression, settling for anything less than Japanese-engineered hardware is a risk to your crank and cylinders. The TKRJ Piston Kit (0.50mm Oversize) is crafted to meet and exceed OEM specifications, providing the perfect balance of thermal stability and high-RPM durability for your liquid-cooled twin.

Why TKRJ is the Gold Standard for RD 350YPVS Rebuilds:
Authentic Japanese Engineering: TKRJ is world-renowned for manufacturing pistons that perfectly mirror the metallurgical properties and weight of original Yamaha factory parts.

0.50mm Oversize (2nd OS): This kit is the ideal choice for a "fresh" top-end rebuild. It allows a machinist to clean up minor cylinder wear or scoring while keeping the sleeve thick and maintaining plenty of "meat" for future rebores.

High-Silicon Aluminium Alloy: Engineered to withstand the extreme heat cycles of the YPVS engine. This advanced alloy resists "four-point seizing" and maintains its shape under the intense pressure of high-speed 2-stroke combustion.

Precision-Matched Ring Set: Includes premium Japanese rings designed to seat quickly against the cylinder walls, ensuring maximum compression and a clean, smoke-free (well, mostly!) burn.

Optimized Port Geometry: The piston skirt and crown are precision-machined to ensure perfect timing with the RD’s transfer and exhaust ports, maintaining the explosive mid-range power the YPVS is famous for.

Specifications at a Glance:
Model: Yamaha RD 350YPVS / RZ350RR / Banshee 350

Size: 0.50mm Oversize (Bore Size: 64.50mm)

Code No: AY0962X

Pin Diameter: 16mm

Origin: Made in Japan

Kit Includes: 1 Piston, Piston Rings, Wrist Pin, and Circlips. (Note: As the RD 350 is a twin-cylinder, two kits are required for a complete engine overhaul).