Yamaha YZ 250 (CG 12) [2002] - Piston kit

VERTEX piston kit for the Yamaha YZ 250 (CG 12) from 2002

The VERTEX piston kit is designed to renew the upper engine area of the Yamaha YZ 250 (CG 12), built in 2002. As a top-end kit, it bundles the components relevant for the replacement and thereby supports a structured engine overhaul.

Function and scope of delivery

The kit contains the central components for changing pistons in two-stroke applications:

• Piston
• Piston rings
• Piston pin
• safety clips
• Top end gasket kit
• Needle bearing for the piston pin

This means that pistons, seals in the upper engine area and the associated connecting elements are available in a coordinated set.

Technical data

• Material: aluminum
• Piston Type: Cast
• Piston compression: standard
• Diameter Ø (mm): 66.37
• Letter oversize: D
• Bore diameter (mm): 66.400000000000006
• Rings Quantity: 2
• Stroke: 2T

Vehicle assignment

The VERTEX piston kit is assigned to the Yamaha YZ 250 (CG 12) with the complete 2002 model year range. The selection should be based on this model and year information.

Factual note

Thanks to the standard piston compression and the specified dimensions, the kit can be selected specifically based on the existing engine specification. The cast aluminum piston design and the two piston rings are part of the technical design.