This comprehensive workshop service repair manual covers the YFM50 Raptor for the model years 2004 through 2008. Designed as an entry-level sport ATV, the YFM50 Raptor offers user-friendly operation with its automatic continuously variable transmission and approachable styling, making it ideal for youth riders and a gateway into the renowned Raptor lineage. Key features include a reliable air-cooled 49cc engine, a focus on rider safety with features like an adjustable throttle limiter, and a legacy of producing durable and capable off-road vehicles. Its robust engineering ensures dependable performance for recreational use. This manual provides complete and detailed information essential for the maintenance and repair of your YFM50 Raptor. It encompasses a wide range of topics, including in-depth engine mechanical procedures, fuel and ignition system diagnostics, lubrication, cooling, exhaust, transmission, drivetrain, suspension, steering, braking, electrical systems, bodywork, and wheels and tires. Specific guidance is offered on preventive maintenance schedules, troubleshooting common issues, step-by-step repair procedures, overhaul instructions, and necessary adjustments, all supported by detailed wiring diagrams. This resource is invaluable for owners and technicians seeking to ensure the optimal performance and longevity of the vehicle. 🏷️ Basic Information Identification Make: Yamaha Model: YFM50 Raptor Product Type: Workshop Service Repair Manual 👋 Introduction Market Position Segment: Youth ATV / Entry-level Sport ATV Competitive Analysis Competitors: Primarily competed against other entry-level youth ATVs from brands like Honda (e.g., TRX90), Suzuki (e.g., LT-Z90), and Polaris (e.g., Outlaw 90). Key Features Features: Automatic transmission, approachable styling, user-friendly operation, emphasis on safety for younger riders, reliable Yamaha engine. 📋 Manual Details Coverage Areas Model Years Covered: 2004, 2005, 2006, 2007, 2008 Page Count Estimated Pages: Hundreds (as stated, exact count not provided, but typical for factory manuals) Manual Type Type: Complete Official Factory Service Repair Manual Language Language: English (Assumed, typical for factory manuals) Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Disassembly, inspection, assembly, overhaul of engine components (cylinder, piston, crankshaft, valve train, etc.) Fuel System: Carburetor operation, adjustment, cleaning, fuel tank, fuel lines, fuel filter Ignition System: CDI unit, ignition coil, spark plug, wiring diagrams Lubrication System: Oil pump, oil passages, oil filter, oil specifications Cooling System: Air cooling system, cooling fins, airflow management Exhaust System: Muffler, exhaust pipe, heat shields Transmission: Automatic transmission (CVT), clutch operation, belt drive, gear inspection and maintenance Drivetrain: Front and rear drive shafts, differentials, axle components Suspension System: Front and rear suspension, shock absorbers, A-arms, ball joints, bushings Steering System: Steering column, tie rods, steering linkage, wheel alignment Braking System: Front and rear brake calipers, brake discs, brake pads, brake lines, master cylinder Electrical System: Battery, starter motor, charging system, lighting, switches, fuses, wiring diagrams Body And Chassis: Frame inspection, body panels, fenders, seat, handlebars, footpegs Wheels And Tires: Wheel bearings, tire pressure, tire specifications Procedures Included Preventive Maintenance: Scheduled maintenance, lubrication, filter changes, spark plug replacement Troubleshooting: Diagnostic procedures for common problems, symptom-based troubleshooting guides Repair Procedures: Step-by-step instructions for component removal, repair, and installation Overhaul Procedures: Complete rebuild procedures for major components like the engine and transmission Adjustments: Carburetor adjustment, valve clearance adjustment, brake adjustments Wiring Diagrams: Detailed electrical system wiring diagrams for fault finding and repairs Technical Depth Depth: Comprehensive, covering everything from basic maintenance to complete engine rebuilds and advanced diagnostics. 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Print Quality Printability: High quality, suitable for printing individual sections or the entire manual. Binding Type Binding Recommendation: Print and bind for easy workshop use (e.g., spiral bound). Paper Type Recommended Paper: Standard printer paper is sufficient, though heavier stock can improve durability. ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC, 2-valve Displacement: 49cc Bore X Stroke: 39.0 mm x 41.5 mm (Typical for this engine family) Compression Ratio: 9.7:1 (Typical) Performance Horsepower: Approx. 3.1 HP @ 7000 RPM (Estimate for this class) Torque: Approx. 2.5 lb-ft @ 5500 RPM (Estimate for this class) Fuel System Carburetor: Mikuni VM12 (Typical for this application), constant velocity Fuel Type: Unleaded gasoline Fuel Tank Capacity: 2.0 L (0.5 US gal, 0.4 Imp gal) 🔧 Transmission Standard Type: Automatic Continuously Variable Transmission (CVT) Optional Gear Selection: Forward, Neutral, Reverse (FN(R)) Features Drive System: Chain drive to rear axle Clutch: Automatic centrifugal clutch 📐 Dimensions Exterior Overall Length: 1440 mm (56.7 in) Overall Width: 985 mm (38.8 in) Overall Height: 925 mm (36.4 in) Wheelbase: 970 mm (38.2 in) Ground Clearance: 120 mm (4.7 in) Weights Curb Weight: 112 kg (247 lbs) Max Load Capacity: Not explicitly specified, but designed for youth rider + minimal cargo. 🛡️ Safety Features Ratings Safety Features: Adjustable throttle limiter, covered footwells, reliable braking system, often equipped with an ignition key switch for parental control. Active Features Braking Type: Front: Dual Disc, Rear: Single Disc Passive Features Rollover Protection: Standard ATV design with handlebars and seating position. 💡...