520-98 Drive Chain for Yamaha YZ100 1978-1979 YZ 100

520-98 Drive Chain for Yamaha YZ100

This 520-98 drive chain is a replacement chain sized to fit the Yamaha YZ100 for the 1978 through 1979 model years, delivering reliable power transfer from engine to rear wheel.

Overview

This 520-98 drive chain is a direct-fit replacement for the Yamaha YZ100 spanning the 1978 to 1979 model years. As a 520-pitch chain at 98 links, it connects the countershaft sprocket to the rear wheel sprocket so the YZ100 puts power to the ground. Riders maintaining a classic YZ100 will find this drive chain a practical way to restore dependable drivetrain function.

Built For Performance

• 520 pitch matches the YZ100 countershaft and rear sprockets
• 98-link length sized for the 1978 to 1979 YZ100 layout
• Roller chain construction for smooth engagement under load
• Steel links resist stretching from repeated trail and track use
• Direct replacement for the original chain application

Fits These Machines

• for Yamaha YZ100 1978
• for Yamaha YZ100 1979

On-The-Job Use

• Trail riding and woods loops
• Motocross practice and vintage race days
• General maintenance of a classic YZ100
• Restoring a bike back to running condition

Specs At A Glance

Good To Know

Q: How do I know this chain fits my YZ100? A: Match the 520 pitch and 98-link count to your current setup, and confirm your machine is a 1978 or 1979 YZ100. If your original chain differs in length, verify the link count before ordering.

Q: Should I replace the sprockets at the same time? A: Worn sprockets accelerate chain wear, so inspect both sprockets for hooking or flat teeth. Replacing chain and sprockets together is the most reliable approach for a YZ100 drivetrain.

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