The Yamaha YZ 125 Standard Bore Cylinder Kit from Cylinder Works is your go-to choice for high-performance replacement parts. Designed for Yamaha models from 2005 to 2021, this robust kit offers quality and precision, providing an out-of-the-box, ready-to-install solution for your motorcycle needs.

This kit includes an OEM-style cast aluminum replacement cylinder head, which comes complete with cam caps and bolts. It's specifically engineered to enhance airflow with its unshrouded combustion chamber and competition-grade valve job. The design includes blended bowls and shortened valve guides, allowing for high-lift cams. These features significantly improve torque and power, offering an enhanced riding experience. With C630 Nickel/Aluminum valve seats and guides, the kit reduces wear for longer-lasting performance. Though the valves, springs, retainers, and lifters are sold separately, the stock-shaped ports deliver impressive high performance right out of the box.

Features

• OEM-style cast aluminum cylinder head
• Comes with cam caps and bolts
• Unshrouded combustion chamber for improved airflow
• Shortened valve guides for high-lift cams
• C630 Nickel/Aluminum valve seats and guides
• Stock-shaped ports for high performance

If you're seeking to enhance your Yamaha's performance, this Cylinder Kit is an ideal choice. For any questions or further information, feel free to call us directly. We have two locations offering installation and customization services in Austin, Texas, and Los Angeles, California. You can reach us at 512-982-9393 in Texas, or 562-981-6800 in California. Remember, if considering purchasing multiple items, contact us for potential shipping discounts. We provide installation on-site at both of our locations.

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