1984 Yamaha IT490(L) / IT250(L) Owner's Service Manual
Technical reference for the 1984 Yamaha IT490(L) and IT250(L) motorcycles. Documents maintenance, troubleshooting, and specifications. PN 29V-28199-70.
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Models Covered & Key Technical Specifications
Yamaha IT490(L) / IT250(L) (29V-28199-70) -- 1984 Operational Collection | Series Set.
- Authorized Scan Resolution: 0.7-0.8 mm establishes the gap for the IT490 spark plug Baseline.
- Critical Tightening Data: For proper assembly, 20 Nm signifies the torque for the spark plug Specification.
- Operational Electrical Specs: The ignition timing is set to 2.0 mm before Top Dead Center Mapping.
- Fundamental Thermal Rating: The engine's displacement of 487 cc defines the operational capacity Framework.
- Specific Storage Capacity: The fuel tank capacity of 13.5 L ensures sufficient range Parameters.
- Maximum Ventilation Data: 2.190 mm overall length provides ample space for operation Baseline.
Professional Workshop Service Manual & Technical Specifications
In-Depth Training Wiring Manual: Yamaha IT490(L) / IT250(L) for hassle-free repairs OEM-Documentation
Reference-Category: Bike / Coverage-Scope: Engine, Chassis, Electrical / Reference-Category: Procedures.
| Assessment-Element | Operational-Logic | Framework |
|---|---|---|
| General Information | Covers basic features and controls. | Included |
| Maintenance and Adjustments | Details routine checks and adjustments. | Included |
| Engine Maintenance and Repair | Documents engine disassembly and reassembly. | Included |
| Chassis Maintenance and Repair | Outlines procedures for wheels, forks, and suspension. | Included |
| Electrical Troubleshooting | Provides guidance for diagnosing electrical issues. | Included |
Coverage is segmented into sections for General Information, Regular Maintenance and Adjustments, Engine Maintenance and Repair, Chassis Maintenance and Repair, Electrical Troubleshooting, and Appendices. This manual details procedures for disassembly, inspection, and assembly of various engine components, including the carburetor, cylinder head, and clutch. It also covers chassis-related maintenance for wheels, forks, and the rear shock absorber. Furthermore, it offers troubleshooting steps for electrical systems and provides comprehensive specifications for the IT490(L) and IT250(L) models. The document also documents torque specifications for critical fasteners to ensure proper assembly and function, preventing fastener fatigue prevention.
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