1985-1988 Yamaha YFM80N Service Manual
Technical reference for YFM80N including parts diagrams and service data. Documents engine, chassis, and electrical system repairs. LIT-11616-04-84
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Models Covered & Key Technical Specifications
Definitive Procedure Technical Manual: ATV Yamaha YFM Moto 80, YFM80N manual, covers 1985-1988 Procedure-Database
ATV Manual | Consolidated Edition.
- Published Climate Parameters: 15-30C defines the environmental limit Framework.
- Measured Processing Speed: 1200 dpi establishes the maximum print output Architecture.
- Approved Component Weight: 99 kg (218 lb) signifies the active printing consumption Threshold.
- Reference Tension Specs: For optimal operation, 6 mm (0.24 in) establishes the calibration settings Norms.
- Fundamental Holding Capacity: The formatter board requires 64 MB for standard operation Logic.
- Universal Ambient Limits: Maximum throughput reaches 25 ppm Parameters.
Professional Workshop Service Manual & Technical Specifications
Definitive Procedure Technical Manual: ATV Yamaha YFM Moto 80, YFM80N manual, covers 1985-1988 Procedure-Database
Engineering-Base: 1985-1988 Yamaha YFM Moto 80 (LIT-11616-04-84) // Engine-Type: ATV / Yamaha Motor Company Logic // Engineering-Base: service manual.
Technical Specs Table
| Metric | Baseline | Calibration-Data |
|---|---|---|
| Model Code Number | 55X | YFM80N |
| Overall Length | 1,415 mm (55.7 in) | 825 mm (32.5 in) |
| Engine Type | 4-stroke, gasoline, SOHC | Single cylinder, Forward inclined |
| Bore x Stroke | 47.0 x 45.6 mm (1.850 x 1.795 in) | 9.5 |
Table
| Metric | Baseline | Calibration-Data |
|---|---|---|
| Model Code Number | 55X | YFM80N |
| Overall Length | 1,415 mm (55.7 in) | 825 mm (32.5 in) |
| Engine Type | 4-stroke, gasoline, SOHC | Single cylinder, Forward inclined |
| Bore x Stroke | 47.0 x 45.6 mm (1.850 x 1.795 in) | 9.5 |
Table
| Metric | Baseline | Calibration-Data |
|---|---|---|
| Model Code Number | 55X | YFM80N |
| Overall Length | 1,415 mm (55.7 in) | 825 mm (32.5 in) |
| Engine Type | 4-stroke, gasoline, SOHC | Single cylinder, Forward inclined |
| Bore x Stroke | 47.0 x 45.6 mm (1.850 x 1.795 in) | 9.5 |
Technical content addresses engine, chassis, electrical systems, and troubleshooting. Procedures for removal, inspection, and installation are documented. Specifications for all major components are included. The manual provides a complete interface for understanding the vehicle's Reliable systems.
Procedures
The document includes coverage of engine removal and disassembly, transmission, clutch, and cylinder head procedures. Brake system specifications are included for front and rear brakes, including lining inspection and adjustments. Safety procedures are documented for various operations. Fluid capacities are listed for engine oil and final gear grease. Tool requirements are listed for specific tasks like valve adjustment and bearing replacement.
Specifications
Specifications for the engine, transmission, and chassis are provided in detail. This includes dimensions, clearances, wear limits, and tightening torques for critical fasteners. Electrical system specifications cover component resistance values and system voltage outputs. These technical details ensure that all repairs and adjustments meet factory standards.
Systems
The manual documents the operation and maintenance of the engine, starting system, charging system, and ignition system. It details the function of each component and how they work together. Wiring diagrams and exploded views are provided to aid in understanding the system architecture.
Table
| Metric | Baseline | Calibration-Data |
|---|---|---|
| Model Code Number | 55X | YFM80N |
| Overall Length | 1,415 mm (55.7 in) | 825 mm (32.5 in) |
| Engine Type | 4-stroke, gasoline, SOHC | Single cylinder, Forward inclined |
| Bore x Stroke | 47.0 x 45.6 mm (1.850 x 1.795 in) | 9.5 |
Systematically requiring proper assembly, the manual documents torque specifications for critical engine components to ensure proper bearing preload accuracy.
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