Yamaha RD 350 Ypvs [PROX] – piston kit for 2-stroke

Piston kit for 2-stroke engines from PROX

The piston kit from PROX is specially designed for the 2-stroke engine of the Yamaha RD 350 Ypvs. This is a complete piston set that contains all the necessary components for a professional engine overhaul. The components are tailored to the requirements of the 350 cc displacement and ensure a precise fit with a bore size of 64.50 mm with an oversize of +0.50 mm.

Technical features

• Brand: PROX
• Engine type: 2-stroke
• Bore: 64.50 mm (+0.50 mm oversize)
• Displacement: 350cc
• Piston material: Aluminum alloy, cast
• Coating of piston skirt: Moly coating
• Compression ratio: Default
• Number of pieces: Kit (piston and rings)

Product description

The piston is made of a high-quality aluminum alloy and is manufactured using a casting process. The moly coating on the piston skirt provides improved wear resistance and reduces friction in the cylinder barrel. This contributes to a longer engine life and supports even heat distribution during operation.

In addition to the piston, the kit also contains suitable piston rings that ensure optimal sealing in the cylinder. The compression ratio is standard, meaning no adjustments to the engine are required. The oversize of +0.50 mm enables use with machined cylinders with the corresponding cylinder diameter.

This piston kit is part of the ENGINE GROUP and belongs to the PISTON + RING KITS product group. It is suitable for replacing or repairing the piston on the Yamaha RD 350 Ypvs and helps restore engine performance and reliability.