What is included in this power valve kit?

This kit includes a cast aluminum Cylinder Works cylinder, a Vertex piston, and all the gaskets needed to restore your engine's performance. It's designed to be a complete solution for a standard bore rebuild.

What makes the cylinder bore durable?

The cylinder features a nickel silicon carbide (NSC) electroplate bore. This advanced plating process allows for tighter tolerances, which results in lower friction and extreme durability for the engine.

How does the honing process benefit the engine?

The cylinder is precision diamond honed to exact dimensions with a proper surface finish. This ensures your piston rings achieve a good seal against the cylinder wall, which is vital for proper oil retention and consistent power output.

Specifications

Brand: Cylinder Works
Part #: CW-PV-K01
UPC: 714205042368

Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit

Name: Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit
Brand: Cylinder Works
SKU: cylinder-works-cylinder-works-99-24-yamaha-yz-250-250cc-standard-bore-power-valv-t14-728204
Price: 240.30 USD
Availability: BackOrder

$240.30

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit. Restores horsepower and performance at a competitive price.

Key Features

Fits 1999-2024 Yamaha YZ 250 250cc.
Includes a cast aluminum Cylinder Works cylinder, Vertex piston, and necessary gaskets.
Features a nickel silicon carbide (NSC) electroplate bore for reduced friction and increased durability.
The bore is precision diamond honed for optimal ring seal and oil retention.
Restores original horsepower and performance compared to OEM options.

This kit is designed for 1999-2024 Yamaha YZ 250 250cc models. Please verify fitment for your specific vehicle.

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About this part

Product Details

This Cylinder Works 99-24 Yamaha YZ 250 250cc Standard Bore Power Valve Kit is designed to bring your dirt bike back to its original performance level. It includes a cast aluminum cylinder, a Vertex piston, and all the necessary gaskets to get the job done, offering a cost-effective alternative to OEM parts.

The cylinder features a nickel silicon carbide (NSC) electroplate bore. This advanced plating allows for tighter tolerances, which means less friction and improved durability. It's precision diamond honed to exact dimensions, ensuring your piston rings seal properly and retain oil effectively, which is crucial for engine longevity and consistent power delivery.

This kit is a solid option for anyone looking to rebuild their engine and restore lost horsepower. It provides the essential components needed to get your Yamaha YZ 250 running strong again.