YAMAHA YZ 490 [1982-1984] - WÖSSNER forged pistons

WÖSSNER forged pistons for the YAMAHA YZ 490

The WÖSSNER forged piston is designed for the YAMAHA YZ 490 built between 1982 and 1984. This allows you to select the appropriate piston design based on the vehicle, year of manufacture and the specified dimensional data.

Design and technical data

• Piston type: forged
• Material: aluminum
• Diameter Ø: 87.92 mm
• Letter oversize: 100
• Oversize: +1.00
• Bore diameter: 88.00 mm
• Piston rings: 2
• Stroke: 2T

The combination of forged design, aluminum and the specified dimensions clearly describes the piston for the intended selection. The diameter of 87.92 mm, the oversize +1.00 and the bore diameter of 88.00 mm should be compared with the existing motor dimensions before ordering.

Vehicle assignment

The forged piston fits the YAMAHA YZ 490, built between 1982 and 1984. The assignment refers to this entire year of construction.

Factual advice on selection

When making your selection, please pay particular attention to the specified bore diameter, the oversize and the version with 2 piston rings. This means that the technical specification of the piston can be used to match the intended YAMAHA YZ 490.