My Garage
Select a ride to guarantee fitment.
My Garage
Add your vehicles to your garage. Several features will then be available to facilitate your searches.
- Store vehicles in your garage
- Easily find guaranteed fit products and accessories
- Get product recommendations
Available Online
Free shipping on orders over $99
Standard Fulfillment: -
Expedited Fulfillment: -
Lowest Price Guaranteed
Fast Shipping
Easy Returns
Description
FEATURES
- Black vinyl coil-wound housing
- Meets or exceeds OEM quality
- Inner nylon sleeve for longer life and smooth operation
Technical Specifications
- MFG. Part Number 05-0381
Vehicle Information
Yamaha IT425 Motorcycle - Dual-Sport (1980)
The 1980 Yamaha IT425 was a robust two-stroke enduro motorcycle, renowned for its performance. It featured a 425cc, single-cylinder, reed-valve induction engine, delivering approximately 36.9 horsepower (27 kW) at 6000 RPM and 31 lb-ft of torque at 5500 RPM. This model was introduced as a new powerplant for 1980, based on the YZ400 motocrosser engine. It was primarily offered as a single model, often known as the IT425G, with no indications of multiple distinct trims. The IT425 was a relatively short-lived model, available for 1980, with some sources also listing 1981. There were no significant mid-cycle generation or engine changes reported for the 1980 model year itself. FAQ:
Q: Is this product compatible with my Yamaha IT425?
A: To ensure compatibility, please use the year and edition selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Check before each ride; change oil and filter every 1 000 km or 10 hours, or at the beginning and mid-season. | Gearbox oil capacity is 0.85 liters. The filter element must be removed as part of regular maintenance. |
| Spark Plug | Check regularly and replace if necessary. | Recommended models: DPR8EA-9/NGK or X24EPR-U9/DENSO (gap 0.8-0.9 mm). Another source mentions DR8EA (NGK) with a gap of 0.6-0.7 mm. |
| Air Filter | Clean and oil regularly, more frequently in wet or dusty conditions. | Some filters can be washed. |