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. As a forged aluminum piston, it has standard piston compression and is intended for a 4T engine.

Technical features

• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 89.93 mm
• Bore diameter: 90.00 mm
• Compression ratio: 10.41:1
• Rings Quantity: 3
• Stroke: 4T

Excess and selection

The piston is marked with the letter oversize 300 and has an oversize of +3.00. The specified bore diameter is 90.00 mm. These values ​​support targeted selection based on the intended cylinder bore and the technical engine design.

Vehicle assignment

Suitable for the Yamaha SR 500, built between 1978 and 1989. The assignment applies to this entire year range.

Factual note

Before making a selection, the bore diameter of 90.00 mm, the compression ratio of 10.41:1 and the 4T piston design must be compared with the existing engine configuration.