Timing Chain Tensioner Guide Stopper for Yamaha YZ-F 400 1998-1999

Timing Chain Tensioner Guide/Stopper for Yamaha YZ-F 400

This timing chain tensioner guide and stopper is a replacement component that maintains cam chain tension and alignment on Yamaha YZ-F 400 models from 1998 through 1999.

Overview

The timing chain tensioner guide and stopper is a key wear part on the Yamaha YZ-F 400, holding the cam chain steady and preventing slack that can lead to timing problems. This timing chain tensioner guide is intended for riders and mechanics servicing or rebuilding the top end of a 1998 to 1999 YZ-F 400. It works alongside the stopper to keep the tensioner assembly operating correctly.

Built For Performance

• Replacement guide and stopper set for the Yamaha YZ-F 400 tensioner assembly
• Maintains consistent cam chain tension across the rev range
• Helps reduce chain slap and premature timing chain wear
• Direct-fit profile for 1998 to 1999 YZ-F 400 applications
• Well suited to rebuilds, top-end refreshes, and routine maintenance

Fits These Machines

• for Yamaha YZ-F 400 1998
• for Yamaha YZ-F 400 1999

On-The-Job Use

• Top-end rebuilds and cam chain replacement jobs
• Routine engine maintenance on YZ-F 400 motocross bikes
• Restoring timing chain tension after wear is detected
• Service work performed by home mechanics and shops

Specs At A Glance

Good To Know

Q: How do I know if my tensioner guide needs replacing? A: Check the guide for grooves, cracking, or material loss whenever the valve cover is off, since worn guides allow chain slack and can affect cam timing.

Q: Is this an original Yamaha part? A: This is an aftermarket replacement guide and stopper made for the Yamaha YZ-F 400, not an original factory component.

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