For Yamaha YFZ450R 2009-2022 Starter Clutch One Way Bearing Sprag & Gasket New

Starter Clutch One Way Bearing Sprag & Gasket for Yamaha YFZ450R

This starter clutch one way bearing sprag and gasket set restores reliable electric starting to your Yamaha YFZ450R, engaging the starter drive and preventing kickback once the engine fires.

Overview

This starter clutch one way bearing sprag and gasket kit is a direct replacement for the worn starter clutch assembly on Yamaha YFZ450R models from 2009 through 2022. The sprag bearing locks in one direction to transfer starter torque to the crankshaft while free spinning the other way once the engine catches. Riders and mechanics rebuilding a hard-to-start or noisy YFZ450R will find this starter clutch sprag and gasket set a dependable fix.

Built For Performance

• One way sprag bearing design that locks drive torque in a single direction for consistent starter engagement
• Hardened bearing surfaces built to handle repeated starting cycles and engine kickback
• Includes the matching gasket for a clean seal during installation
• Direct fitment for the YFZ450R starter clutch assembly
• Replaces the worn sprag that causes slipping, grinding, or failure to engage

Fits These Machines

• for Yamaha YFZ450R 2009-2022

On-The-Job Use

• Rebuilding a YFZ450R that grinds or slips when the start button is pressed
• Routine starter clutch service during top or bottom end engine work
• Restoring dependable cold starts on trail and track quads
• Replacing a failed sprag before it damages the starter gears

Specs At A Glance

Good To Know

Q: What does a one way bearing sprag do in the starter clutch? A: It locks in one direction to pass starter motor torque to the engine and free spins the other way once the engine runs, preventing kickback. A worn sprag slips or grinds and can stop the starter from engaging at all.

Q: Will this fit my 2018 YFZ450R? A: This starter clutch sprag and gasket set is listed for Yamaha YFZ450R models from 2009 through 2022. Confirm your model year and serial number before ordering to be sure of fitment.

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