520-106 Drive Chain for Yamaha IT400 1977-1978 IT 400

520-106 Drive Chain for Yamaha IT400

This 520-106 drive chain is a standard replacement chain that transfers power from the countershaft sprocket to the rear wheel sprocket on 1977-1978 Yamaha IT400 models.

Overview

This drive chain is built for 1977-1978 Yamaha IT400 models and handles power transfer from the engine to the rear wheel. The 520-106 drive chain uses a standard non-O-ring design that is simple to maintain and works with factory sprocket sizing. It suits riders who want a straightforward replacement chain for a Yamaha IT 400.

Built For Performance

• 520 series pitch matches the factory sprocket sizing on Yamaha IT400 models
• 106 link count fits the stock gearing without trimming on the listed machines
• Heat-treated pins and rollers resist stretch under the torque of a 400cc two-stroke
• Standard non-O-ring construction keeps weight down and allows easy cleaning and lubrication
• Pre-stretched construction reduces the need for frequent adjustment after break-in

Fits These Machines

• for Yamaha IT400 1977
• for Yamaha IT400 1978

On-The-Job Use

• Trail and enduro riding on 1977-1978 Yamaha IT400 machines
• Replacing a worn or stretched chain during routine drivetrain service
• Keeping sprocket wear down on bikes that see regular off-road use

Specs At A Glance

Good To Know

Q: Does this standard chain need more frequent maintenance than an O-ring chain? A: Non-O-ring chains do not seal lubricant inside the rollers, so they benefit from regular cleaning and lubrication after wet or dusty rides. With routine care, this chain delivers dependable service on a Yamaha IT400.

Q: Should the sprockets be replaced at the same time as this chain? A: Installing a fresh chain on worn sprockets accelerates chain wear, so inspect both sprockets for hooked or uneven teeth. Replacing the set together usually delivers the longest service life.

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