Wossner Standard Series Piston Kit - 8104DC Yamaha YZ 85 2002-2026 BIG BORE Spark timing optimized for 91-93

Spark timing optimized for 91-93 octane fuel

The strength of 660 bronze bushings and bearing-grade steel for the roller tip

Gloss black aluminum mounting bracket

Product Name Needle Jet Riding Style Street Base Color Silver Model Richer Jet Size 2

Wossner Standard Series Piston Kit - 8104DC Yamaha YZ 85 2002-2026 BIG BORE Spark timing optimized for 91-93Features Pistons made are with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance Optimized machining for lightness, as well as maintained strength in key areas such as crown and skirt wall cross section Forged from aerospace grade aluminum alloy Piston kits includes piston, rings, pin and clips Specs Riding Style Off Road Bore Size 47. 52 mm Bore Oversize +0,02 mm Piston Material Forged Engine