Yamaha SR 500 [1978-1989] - WÖSSNER Pro Series forged pistons

WÖSSNER Pro Series forged pistons for Yamaha SR 500

The WÖSSNER Pro Series forged piston is designed for the Yamaha SR 500 in the full year range from 1978 to 1989. Its technical characteristics support a targeted selection when replacing the piston within this vehicle classification.

Design and technical data

• Piston type: forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 88.43 mm
• Letter oversize: 150
• Oversize: +1.50
• Bore diameter: 88.50 mm
• Compression ratio: 10.1:1
• Rings Quantity: 3
• Stroke: 4T

Vehicle assignment

The forged piston is assigned to the Yamaha SR 500 from year 1978 up to and including year 1989. The combination of oversize +1.50, the bore diameter of 88.50 mm and the diameter Ø of 88.43 mm provides a clear basis for comparing the required engine dimensions.

Selection note

Before making a selection, the specified oversize, the bore diameter and the compression ratio must be compared with the intended engine dimensions. The design is marked as a 4T piston with three rings and standard compression.