Category:
Sport ATV / Quad Bike
Target Audience:
Enthusiasts, owners undertaking DIY maintenance and repair
Segment:
Entry-level to mid-range sport ATV segment
Value Proposition:
Comprehensive and detailed repair guidance for the 2008 Yamaha Raptor 250
Manual Advantage:
Empowers owners with the knowledge for self-maintenance and repairs, reducing reliance on dealerships.
Primary Coverage:
Comprehensive Service, Repair, and Workshop Procedures
Secondary Coverage:
Technical Specifications, Diagrams, Parts Listing, Troubleshooting
Type:
Service Repair Workshop Manual
Engine:
Full engine disassembly, assembly, inspection, and repair procedures
Carburetor:
Detailed cleaning, adjustment, rebuilding, and tuning procedures
Drive Train:
Clutch, gearbox, final drive, chain maintenance, and repair
Chassis:
Suspension (front and rear), steering, brakes, wheels, and frame components
Electrical:
Wiring diagrams, ignition system, lighting, battery, starter, and related components
General:
General maintenance, cleaning, lubrication, and safety precautions
Maintenance:
Periodic checks, adjustments, fluid changes, filter replacements, and lubrication
Troubleshooting:
Diagnostic flowcharts and common problem/solution guides
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly
Technical Data:
Torque specifications, clearances, fluid capacities, and electrical values
Depth:
Comprehensive from basic maintenance to detailed engine and drivetrain rebuilds
Engine Type:
4-stroke, SOHC, 2-valve, Air-cooled, Single Cylinder
Bore X Stroke:
74.0 mm x 57.9 mm
Valve Clearance Intake:
0.11 - 0.20 mm (Cold)
Valve Clearance Exhaust:
0.16 - 0.26 mm (Cold)
Horsepower Est:
Approximately 18-20 HP (Note: Manual will contain exact specifications)
Torque Est:
Approximately 15-17 lb-ft (Note: Manual will contain exact specifications)
Fuel Delivery:
Carburetor
Carburetor Model:
Mikuni VM26 (Manual will specify exact model and jetting)
Fuel Type:
Unleaded gasoline, 87 octane minimum
Ignition System:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Air-cooled
Oil Type:
Yamalube 4, SAE 10W-30 API SE (Manual will specify exact specs and capacity)
Safety Certification:
Meets EPA emissions requirements (Manual provides details)
Braking System:
Hydraulic disc brakes front and rear
Suspension Front:
Independent double wishbone with preload adjustment
Suspension Rear:
Swingarm with Monocross linkage and preload adjustment
Handlebars:
ATV-specific control handlebars
Initial Service:
First service at 600 miles or 6 months (Manual will detail specific checks)
Engine Oil Change:
Every 1000 miles or 6 months (Manual will specify)
Air Filter Cleaning:
Regularly, depending on operating conditions (Manual details frequency)
Engine Oil Viscosity:
SAE 10W-30
Engine Oil API Service:
API SE or higher
Brake Fluid:
DOT 3 or DOT 4 (Manual will confirm)
Common Wear Items:
Brake pads, clutch plates, chain and sprockets, air filter element (Manual provides part numbers and replacement procedures)
Carburetor Tuning:
Can require periodic adjustment for optimal performance, especially with modifications or altitude changes.
Engine Performance:
Potential for slight power loss at higher altitudes; manual covers jetting recommendations.
Manufacturer:
Yamaha Motor Company
Focus:
Renowned for performance motorcycles, ATVs, and powersports vehicles
Raptor Lineage:
Part of the successful Yamaha Raptor family, known for performance and off-road capability.
Raptor 250 Introduction:
Introduced as a lighter, more nimble option within the Raptor lineup, targeting a broader audience.
Production Years For Model:
2008-2012