1979-1990 Yamaha Excel-V / XLV / EC540 Snowmobile Service Manual
Service Manual for Yamaha Excel-V, XLV, EC540, EXCEL 540 C, and EC 540 D Snowmobiles (1979-1990). Covers procedures for engine, drive, chassis, electrical systems, and more. Ref: 8H8-000101
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Models Covered & Key Technical Specifications
1979-1990 Yamaha Excel-V / XLV / EC540 Snowmobile Service Manual
Service Manual for Yamaha Excel-V, XLV, EC540, EXCEL 540 C, and EC 540 D Snowmobiles (1979-1990). Covers procedures for engine, drive, chassis, electrical systems, and more. Ref: 8H8-000101 | Series Snowmobile
- Reference Engine Specifications: The engine features a 535 cc displacement, providing 45 hp (33.5 kW) of power.
- Approved Cooling System: A fan-cooled, two-stroke, twin-cylinder engine configuration ensures efficient operation.
- Designated Ignition System: The CDI ignition system guarantees reliable spark for starting and running.
- Certified Lubrication System: The "Autolube" oil injection system ensures proper lubrication for engine longevity.
- Factory Carburetor Settings: Standard main jet is 145, with a pilot screw set at 2-1/4 turns out for optimal fuel mixture.
- Fundamental Drive Ratio: The V-belt drive system offers a ratio of 3.5:1 to 1:1 for versatile performance.
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Yamaha Excel-V / XLV / EC540 Snowmobile Service & Repair Manual (1979-1990) Knowledge-Base
Repair-Classification: Factory Documentation // Architecture-Focus: Component Assemblies / Systems Logic // Assembly-Group: Drive Train & Drivetrain
| Specification | Rating | Calibration-Data |
|---|---|---|
| Engine Type | Axial fan-cooled, two-stroke, twin cylinders | N/A |
| Displacement | 535 cc | N/A |
| Primary Drive System | V-belt | N/A |
| Ignition System | C.D.I. | N/A |
| Lubrication System | "Autolube" oil injection | N/A |
Technical chapters are organized around core vehicle systems:
- Chapter 1: General: Covers external views, machine identification, and maintenance intervals.
- Chapter 2: Engine: Details engine removal, disassembly, inspection, and reassembly.
- Chapter 3: Carburetion: Explains carburetor tuning, adjustment, and troubleshooting procedures.
- Chapter 4: Power Train: Focuses on the drive system, brakes, suspension, and drive track.
- Chapter 5: Chassis: Includes steering, oil tank, fuel tank, skis, and electrical component details.
This manual documents torque specifications for the crankshaft to ensure proper bearing retention. Appropriately demanding engine rebuild procedures are documented for detailed maintenance. Standard engine operation and adjustment procedures are clearly outlined. The manual also addresses drivetrain specifications for optimal clutch performance.
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