1966-1972 Yamaha YL-1 Service Manual
This 1966-1972 Yamaha YL-1 service manual covers the YL-1 Standard and YL-1 Twin Jet models, including detailed diagrams and specifications for all major components. Ref: YL-1
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Models Covered & Key Technical Specifications
Yamaha YL-1 (YL-1 / Yamaha Motor Corporation, Ltd) - 1966-1972 models Service Manual | Motorcycle Portfolio.
- System Power Output: 9.5 bhp at 8,500 rpm establishes the peak engine performance Metrics.
- Specific Fuel Capacity: The fuel tank requires 1.93 gal. for optimal range Operation.
- Essential Oil Volume: The oil tank holds 1.16 qts. to ensure adequate lubrication Supply.
- Advanced Air Pressure: The tire pressure requires 2.50×17-4 ply rating for stability Performance.
- Core Weight Capacity: Curb weight reaches 180 lbs. for overall handling Stability.
- Published Ignition Timing: BTDC 21° (1.8 mm) is the specified ignition timing Parameter.
Professional Workshop Service Manual & Technical Specifications
Advanced Configuration Diagnostic Manual: Motorcycle Genuine Yamaha YL-1 manual: 1966-1972 models Transmission-Guide
| System-Coverage: YL-1 / Yamaha Motor Corporation, Ltd // Maintenance-Category: Motorcycle / Engine Logic // System-Coverage: Technical-Data. | Assessment-Element | Value | Calibration-Data |
|---|---|---|---|
| Engine Specifications | 97 cc Displacement | 7.1:1 Compression Ratio | |
| Performance Metrics | 65-70 mph Max Speed | 153 mpg Fuel Consumption | |
| Transmission Details | 4-Speed Constant-Mesh | 3.08:1 1st Gear Ratio | |
| Electrical System | 12V Battery System | 84W Alternator Output | |
| Chassis Components | Telescopic Front Fork | Coil Spring Rear Suspension | |
| Braking System | Internal Expanding Brakes | Waterproof Dustproof Drums |
Service sections detail engine specifications, including piston displacement and compression ratios. Procedures are outlined for transmission assembly and disassembly, covering gear ratios and reduction ratios. Introduction to the YL-1's unique design and features is provided, highlighting its streamlined appearance and reinforced frame. The manual includes a comprehensive table of technical specifications for the engine, transmission, and electrical systems. Troubleshooting and maintenance guidelines are also detailed. ...documents torque specifications for engine components to ensure proper pivot-point integrity.
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