2009 Yamaha YZ250Y Owner's Service Manual
YZ250Y service documentation with detailed coverage of engine, chassis, and electrical systems. PN LIT-11626-22-55.
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Models Covered & Key Technical Specifications
2009 Yamaha YZ250Y (LIT-11626-22-55) -- Owner's Service Manual Yamaha YZ250Y (2009) | Series Yamaha Motorcycle Volume
- System Circuit Specs: 0.18 mm (0.007 in) defines the ignition timing specification Framework.
- Core Heat Tolerance: For optimal operation, 21.0 cm3 signifies the engine's combustion chamber capacity Benchmarks.
- Specific Processing Speed: The transmission utilizes constant mesh, 5-speed operation Sequences.
- Critical Resolution Data: 80/100-21 51M establishes the front tire size Mapping.
- Universal Twist Specifications: The 26.9 ° caster angle dictates the steering geometry Configuration.
- Technical Power Framework: 100 kPa (1.0 kgf/cm2, 15 psi) signifies the tire pressure Baseline.
Professional Workshop Service Manual & Technical Specifications
Applied Operations Training Manual: Yamaha YZ250Y (2009) Owner's Service Manual Electrical-Reference
Coverage-Scope: All chapters // Architecture-Focus: Motorcycle / Engine Logic // System-Coverage: Complete procedures. The service manual covers all aspects of the Yamaha YZ250Y, providing comprehensive guidance for maintenance and repair. It details systems, procedures, and specifications necessary for optimal performance and longevity.
Engine
This section details engine procedures, including coolant checks, oil changes, and component inspections. It provides specific instructions for tasks like carburetor adjustments and air filter maintenance.
Chassis
This part of the manual focuses on chassis components, covering wheel and brake system servicing, suspension adjustments, and steering head maintenance.
Electrical
The electrical section outlines the motorcycle's wiring diagrams, ignition system, CDI unit, and spark plug checks. It ensures proper functioning of all electronic components.
Specifications
This section provides detailed specifications for the Yamaha YZ250Y, including engine dimensions, transmission gear ratios, and brake system details, crucial for accurate servicing.
Torque Specifications Table
| Metric | Operational-Logic | Validation-Data |
|---|---|---|
| Engine Assembly Torque | 59.95–60.00 mm | 2.360–2.362 in |
| Chassis Torque | 115 mm | 4.53 in |
| Brake Torque | 250 × 3.0 mm | 9.84 × 0.12 in |
| Electrical Torque | 0.18 mm | 0.007 in |
| Handlebar Torque | 28 Nm | 2.8 m•kg |
| Suspension Torque | 131.5 mm | 5.18 in |
Effectively establishing proper maintenance schedules is vital for the longevity and performance of your Yamaha YZ250Y. The manual documents torque specifications for critical engine components to ensure proper joint separation prevention.
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