About the Yamaha IT400
Plan an IT400 restoration around the fork, clutch and swingarm assemblies that remain on the bike.
The IT400 is part of Yamaha’s 1970s enduro history. On a restoration, record the fork and swingarm fitted to the motorcycle alongside the engine and frame identification. Period competition changes or later repairs can affect which suspension and clutch parts belong in the order.
Choosing IT400 service parts
Fork seals and the featured clutch plate list 1976–1979, while the swingarm needle-bearing set starts at 1977. For swingarm pivot work, compare the bearing dimensions and inspect the associated sleeves, seals and shaft. Keep those requirements separate from the fork service list so the bearing package is assessed on its actual contents.
Compare the model and repairIT400 application checkpoints
1976 versus later bearing coverage
The fork and clutch examples include 1976, but the featured swingarm bearing application begins in 1977. A 1976 pivot repair needs its own confirmation.
Different jobs, different dimensions
Fork oil seals retain lubricant in the front suspension; swingarm needle bearings support a pivot. Match each component to its assembly and check associated parts separately.
Identify your motorcycle before orderingIT400 identification checklist
- Record the IT400 frame and engine markings and model year before using an IT-family listing.
- Identify the fitted fork and compare the removed oil seal dimensions and profile.
- Inspect the swingarm pivot arrangement and compare bearing dimensions, sleeves and seals before selecting a repair package.
Contact PartsNMore with the full model, year, frame and engine markings, and clear photos of the component.
Model reference: Yamaha model history. Product applications are taken from the linked PartsNMore listings.