2008 Yamaha Raptor 250 YFM250RX Service Manual
Complete Yamaha Raptor 250 service manual covering 2008-2009 models. Includes detailed procedures for engine, chassis, electrical, and more. Publication LIT-11616-21-22.
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Models Covered & Key Technical Specifications
Yamaha Raptor 250 (YFM250RX) 2008-2009 Service Manual Detailed troubleshooting, parts diagrams, and service data for your Yamaha Raptor 250 ATV.
- Measured Processing Speed: 1,500 ~ 1,600 r/min establishes the engine idle speed Baseline.
- Specific Temperature Range: For optimal operation, 55 ~ 65°C defines the coolant limit Requirements.
- Essential Power Rating: 190 W at 5,000 r/min -- signifies the nominal generator output Threshold.
- Advanced Memory Capacity: The CDI unit requires 4D3/YAMAHA for standard operation Logic.
- Core Speed Performance: Maximum compression pressure reaches 1,300 kPa Parameters.
- Baseline Fuel Capacity: 9.0 L (1.97 Imp gal, 2.37 US gal) dictates the standard fuel tank Volume.
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Yamaha Raptor 250 (YFM250RX) Service Manual: 2008-2009 - Precision Maintenance & Repair Guide Powertrain-Manual
Performance-Values: 2008-2009 // Assembly-Group: YFM250RX / Raptor 250 // Architecture-Focus: Engine, Chassis, Electrical
| Performance-Element | Value | Framework |
|---|---|---|
| Engine Type | Air-cooled 4-stroke, SOHC | Engine |
| Displacement | 249 cm3 (15.19 cu in) | Engine |
| Bore x Stroke | 74.0 x 58.0 mm (2.91 x 2.28 in) | Engine |
| Front Suspension | Double wishbone | Chassis |
| Rear Suspension | Swingarm | Chassis |
| Front Brake Type | Dual disc brake | Brakes |
| Ignition System | DC-CDI | Electrical |
| Starter Motor Output | 0.40 kW | Electrical |
Technical content addresses engine removal, cylinder head service, rocker arm and camshaft inspection, and valve procedures. System operation descriptions cover carburetor adjustments, chassis maintenance, electrical component checks, and troubleshooting guidelines. The documentation addresses rear brake adjustment, tire pressure checks, and wheel inspections. Assembly instructions are detailed for the clutch, oil pump, and starter clutch. Hydraulic schematics are included for the brake system. Steering system component information is provided for tie-rods and knuckles. Drive chain slack adjustment and rear shock absorber settings are documented. The manual also details crankcase disassembly and assembly, crankshaft inspection, and transmission service. Finally, it covers the pickup coil rotor, starter clutch, and shift shaft procedures, along with carburetor inspection and the starter motor. Specs include engine specifications, chassis specifications, and electrical specifications. Detailed tightening torques for both engine and chassis components are provided, along with lubrication points and oil flow diagrams. Cable routing illustrations are included to guide the technician. Torque specifications for critical engine and chassis fasteners are clearly listed. Lubrication points and lubricant types are also clearly defined. Special tools required for servicing the vehicle are also listed.
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