Timing Chain Tensioner Guide Stopper for Yamaha YZ-F 50th Anniversary 250

Timing Chain Tensioner Guide/Stopper for Yamaha YZ-F 50th Anniversary 250

This timing chain tensioner guide/stopper is a replacement component that controls timing chain tension and prevents excess travel on Yamaha YZ-F 50th Anniversary 250 motorcycles from 2006 and 2024.

Overview

This timing chain tensioner guide/stopper is a replacement component for the Yamaha YZ-F 50th Anniversary 250, designed to guide the timing chain and act as a stopper that limits tensioner travel. It helps keep the chain properly tensioned through the rev range, supporting consistent cam timing and reducing the risk of chain jump or excessive slack. It suits riders and mechanics servicing the valve train or replacing a worn guide during a top-end rebuild.

Built For Performance

• Functions as both a timing chain guide and tensioner stopper
• Shaped to match the original mounting location for a direct fit
• Construction suited to continuous contact with the moving timing chain
• Helps limit tensioner travel to keep chain tension in spec
• Supports stable cam timing under high-rpm operation
• Sold as a single guide/stopper unit

Fits These Machines

• for Yamaha YZ-F 50th Anniversary 250, 2006
• for Yamaha YZ-F 50th Anniversary 250, 2024

On-The-Job Use

• Top-end rebuilds and timing chain service
• Replacing a worn or damaged chain guide
• Restoring correct tensioner travel after valve train work
• Preventive maintenance on high-hour race engines

Specs At A Glance

Good To Know

Q: Does this include the tensioner itself? A: This listing covers the guide/stopper component only, not the full tensioner assembly. Check your parts diagram to confirm which pieces you need.

Q: Why would I replace a chain guide? A: Guides wear from continuous chain contact and can lose their shape, allowing excess chain movement. Replacing a worn guide helps maintain proper tension and timing.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.