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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 05-0178
Vehicle Information
Yamaha DT400 Motorcycle - Dual-Sport (1975-1978)
The Yamaha DT400, an iconic dual-sport motorcycle, was produced from 1975 to 1978. It was powered by a 397cc two-stroke, air-cooled, single-cylinder engine, offering robust performance for both on-road and off-road use. The DT400 underwent a significant evolution in 1977. The 1975 (DT400B) and 1976 (DT400C) models featured a traditional twin-shock rear suspension. In 1977 (DT400D), the motorcycle was upgraded with a Monocross single-shock system, inspired by YZ motocross models, requiring a frame redesign. The 1978 (DT400E) model introduced aesthetic refinements and black-finished components. The 397cc engine remained consistent throughout this period. FAQ:
Q: How can I ensure parts fit my Yamaha DT400?
A: Use our year and model selector on this page to find compatible parts for your specific vehicle.
Maintenance
| Component | Interval | Details |
| Engine Oil Filter | Not applicable | The DT400's two-stroke engine does not use a traditional engine oil filter. Engine lubrication is handled by the Autolube system. |
| Drive Belt | Not applicable | The Yamaha DT400 is chain-driven and does not use a drive belt. |
| Spark Plug | Check weekly | Check the spark plug's color and condition after the break-in period. Manuals specify types (e.g., NGK B-8ES or B-9ES) and gap (0.7-0.8 mm). |
| Air Filter | Monthly or every 3,200 km | Clean the filter element. Shorten the interval if the motorcycle is operated in unusually dusty conditions. |
| Coolant | Not applicable | The Yamaha DT400 engine is air-cooled and therefore does not use liquid coolant. |
| Transmission Oil | Consult official manual | Owner's manuals contain detailed lubrication charts. The specific interval for transmission oil is not provided in the available snippets. |