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Description
FEATURES
- The All Balls fork seals are manufactured to OEM specifications & tolerances to guarantee quality and superior durability
- Dust seals feature external garter springs to keep the fork tubes clean
Technical Specifications
- MFG. Part Number 55-160
Vehicle Information
Yamaha IT490 Motorcycle - Dual-Sport (1983-1984)
The Yamaha IT490, an enduro and off-road motorcycle, was produced from 1983 to 1984. The "IT" in its name refers to "International Trial," referencing the International Six Days Trial (ISDT). These models featured a single-cylinder, two-stroke, air-cooled 487cc engine, producing approximately 35 HP at 6000 RPM. This engine was specifically tuned for enduro use, delivering more torquey mid-range power compared to its motocross counterpart, the YZ490. The 1983 model year marked a significant redesign for the IT series, introducing the IT490 to replace the IT465 with increased displacement and a redesigned frame. The 1984 model largely carried over the specifications and design updates introduced in 1983. No significant mid-cycle generation or engine changes were noted between the 1983 and 1984 models; the 1984 model was a direct continuation of the updated 1983 design. Each year was offered as a single model, designated IT490K for 1983 and IT490L for 1984, without distinct trim levels. FAQ:
Q: How can I ensure parts fit my Yamaha IT490?
A: To guarantee part compatibility, please use our year and model selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Engine Oil | Every 10 hours or 5 hours (aggressive use) | Replacement. Shorter interval for aggressive or race-level riding. |
| Air Filter | Every 5 hours | Cleaning and servicing. Shorten interval to 2-3 hours in dusty or muddy conditions. |
| Spark Plugs | Regular inspection | Check status, clean, and replace if necessary. |
| Drive Chain | Every 500 km | Check clearance and alignment, and adjust. |