SPI Piston Kits For Yamaha SRV 540 1980-1991 73.50MM Big Bore

Description:

• This bore is 0.5MM bigger than stock

• Engineered to provide the best possible path for combustion chamber heat transfer to the cylinder walls
• All of our pistons, rings. pins and circlips are manufactured to OEM specifications
• All individual components are interchangeable with original parts
• Piston weight is comparable with original piston

WE ARE PROUD TO BRING YOU THE NEXT STEP IN THE EVOLUTION OF PERFORMANCE POWERSPORTS PISTONS. OUR NEWEST LINE IS MADE FROM A SPACE-AGE ALUMINUM ALLOY WHICH MAINTAINS IT'S HIGH TENSILE STRENGTH UP TO 700°F ( 380°C), 50% HIGHER THAN A CONVENTIONAL CAST PISTON. THIS HIGH TEMPERATURE RESISTANCE SIGNIFICANTLY IMPROVES FATIGUE STRENGTH AND IMPACT TOUGHNESS, WHICH MEANS THAT WE WILL KEEP YOU RIDING LONGER AND HARDER THAN THE COMPETITION.

A machined smooth piston crown should reflect combustion heat while reducing carbon buildup and protecting the top of the piston. Some tests have shown that a machined smooth head can in crease HP and fuel economy by up to 6%.

Brand: SPI
Part Number: 09-808-02

Fitment:

• 1979-1984 Yamaha EC 540
• 1980-1991 Yamaha SRV 540
• 1988-2005 Yamaha VK 540
• 2017-2020 Yamaha VK 540
• 1985-1990 Yamaha XL-V 540

Note: Image is for reference only, actual product may vary slightly.