Wiseco Pistons PK1091 66.50mm Piston Kit for Yamaha YFS200 Blaster

The Wiseco PK1091 is a complete 2-stroke piston kit designed specifically for 1988-2006 Yamaha YFS200 Blaster ATVs. This kit includes a high-quality forged piston with a 66.50mm bore size (1.50mm oversized) and a complete top-end gasket kit for a comprehensive rebuild solution.

Key Features:

• 66.50mm bore diameter for +1.50mm oversize applications
• Forged aluminum construction for superior strength and durability
• Includes piston, rings, pin, clips, and top-end gasket set
• Advanced skirt coating reduces friction and wear
• Optimized grain structure aligned to maximize strength-to-weight ratio
• Fits 1988-2006 Yamaha YFS200 Blaster models

Wiseco forged pistons are manufactured entirely in-house in the USA, allowing complete control over every aspect of production from raw materials to finished components. The forging process creates a condensed grain structure that provides higher mechanical properties and superior resistance to impact and fatigue compared to cast pistons. This makes Wiseco pistons ideal for high-performance and racing applications where reliability under extreme conditions is critical.

Each piston is precision-machined and features advanced coatings developed through extensive dyno testing and research. The result is a piston kit that delivers exceptional performance, durability, and longevity for your Yamaha Blaster.