WiseCo Power Kit for Yamaha YFM660R Raptor 2001-2005 - 9.9:1 Compression Ratio PWR133-100

Complete engine rebuild

Crankshaft assembly

OEM quality main bearings

All engine gaskets, seals, and o-rings

Wiseco ProLite 2-stroke piston and top end bearing

Wiseco standard series 4-stroke piston

Cam chain included (if needed)

Wiseco hour meter and bracket included

Bottom end and top end components

Engineered to meet or exceed OEM quality

Reliable OEM sealing

Instant throttle response

Premium quality for smooth operation

Proven performance and reliability

Exact fit and long lasting

Track your engine and critical service intervals

Upgrade your Yamaha YFM660R Raptor with the WiseCo PWR133-100 power kit, designed specifically for models from 2001 to 2005. This comprehensive kit enhances engine performance by increasing the compression ratio to 9.9:1, delivering improved acceleration and top-end power. Crafted with precision, the kit includes high-quality components engineered to fit seamlessly into your ATV, ensuring durability and reliable operation during demanding rides. Installation of this power kit can help unlock additional horsepower and torque, making your Raptor more responsive and fun to ride.

Features:

• Designed specifically for Yamaha YFM660R Raptor models from 2001 to 2005

• Compression ratio increased to 9.9:1 for enhanced engine performance

• Comprehensive kit includes all necessary components for installation

• Engineered for durability and reliable operation under demanding conditions

• Optimizes acceleration, power output, and overall ride experience