🏷️ Basic Information Identification Make: Yamaha Model: Raptor 250 Model Code: YFM250RX Generation Generation: First Generation (2008-2013) 👋 Introduction Market Position Market Position: The Yamaha Raptor 250 YFM250RX is a popular sport ATV known for its approachable power and nimble handling, often positioned as an entry-to-mid-level performance quad. Target Audience: Owners, mechanics, and enthusiasts seeking to maintain, repair, or restore their Yamaha Raptor 250 YFM250RX. Competitive Analysis Competitive Analysis: Competes directly with other 250cc-class sport ATVs from manufacturers like Honda (e.g., TRX250X) and Suzuki (e.g., LT-Z250). Key Features Key Features: Lightweight chassis, agile handling, reliable 249cc liquid-cooled engine, user-friendly power delivery, suitable for recreational riding and trail use. 📋 Manual Details Coverage Areas Coverage Areas: Complete, comprehensive coverage for all aspects of the Yamaha Raptor 250 YFM250RX Page Count Page Count: Exact page count not specified, but implied to be extensive covering all factory procedures. Manual Type Manual Type: Official Factory Service / Repair / Workshop Manual Manual Purpose: Designed for the diagnosis, repair, maintenance, and overhaul of the Yamaha Raptor 250 YFM250RX. Language Language: English (presumed, typical for factory manuals sold internationally) Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems Covered: Engine (Top End, Bottom End, Lubrication, Cooling, Fuel System), Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, Chassis, Bodywork, Maintenance Procedures, Troubleshooting, Diagnostics, Specifications. Electrical System Coverage: Detailed wiring diagrams, component testing, troubleshooting for lighting, ignition, starter, and sensors. Procedures Included Procedures Included: Routine maintenance, complete engine rebuilds, carburetor tuning and repair, valve adjustments, timing adjustments, clutch service, brake system overhaul, suspension component replacement, electrical system troubleshooting, wiring diagram interpretation, chassis inspections, troubleshooting guides, diagnostic flowcharts. Carburetor Rebuild And Tuning: Comprehensive instructions for disassembly, cleaning, inspection, reassembly, and tuning of the Mikuni carburetor for optimal performance and emissions. Engine Rebuild Details: Step-by-step guides for cylinder head removal/installation, piston and ring replacement, crankshaft and connecting rod service, bearing replacement, and oil pump maintenance. Technical Depth Technical Depth: Factory-level technical depth, suitable for professional mechanics and experienced DIY enthusiasts. Includes detailed disassembly and assembly instructions, torque specifications, tolerances, and diagnostic procedures. Torque Specifications: Includes precise torque values for all critical fasteners and engine components. Special Tools Required: Identifies any specialized tools or equipment necessary for specific maintenance and repair procedures. 📊 Manual Specifications File Format File Format: PDF Zoom Functionality: Yes, PDF allows for zooming in/out to view details. Print Quality Print Quality: High Quality, Printable Searchability: Implied to be searchable due to PDF format, aiding in quick information retrieval. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 249cc, Liquid-Cooled, Four-Stroke, SOHC, Four-Valve Bore X Stroke: 74.0 mm x 58.0 mm Compression Ratio: 11.2:1 Performance Horsepower: Approximately 20-22 HP (estimated, as official figures are often not published for ATVs). Torque: Not officially published, but designed for responsive low-to-mid-range torque. Fuel System Fuel Delivery: Mikuni BNS30 Carburetor (specific model may vary slightly by year/region) Ignition Ignition System: TCI (Transistor Controlled Ignition) Lubrication Oil Type Specification: Yamalube 4 (or equivalent SAE 10W-40 API SG or higher) Cooling System Cooling Medium: Liquid Cooling 🔧 Transmission Standard Transmission Type: 5-Speed Manual with Reverse Clutch Type: Wet, Multi-Disc Features Final Drive: O-ring sealed chain Fluid Specifications Transmission Oil Type: Yamalube 4 (or equivalent SAE 10W-40 API SG or higher) 📐 Dimensions Exterior Length: Approximately 69.1 inches (1755 mm) Width: Approximately 45.1 inches (1145 mm) Height: Approximately 43.3 inches (1100 mm) Weights Dry Weight: Approximately 331 lbs (150 kg) Ground Clearance: Approximately 4.4 inches (112 mm) Wheels Tires Front Tire Size: AT21x7-10 Rear Tire Size: AT20x10-9 Front Wheel Travel: Approximately 3.9 inches (99 mm) Rear Wheel Travel: Approximately 4.1 inches (104 mm) 🛡️ Safety Features Passive Features Handlebar Design: Wide-section handlebar with thumb throttle for enhanced control and comfort. Footwells: Aggressive, serrated footpegs with removable aluminum heel guards for grip. Active Features Brakes Front: Dual Hydraulic Disc Brakes Rear: Single Hydraulic Disc Parking Brake: Mechanical Drum Brake (lever operated) 💡 Technology Features Infotainment Infotainment System: N/A (Basic Sport ATV design focused on performance, no advanced infotainment features). Driver Assistance Driver Assistance Features: N/A (Focus on rider input and control). Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific intervals, typically every 20-30 operating hours or annually. Air Filter Cleaning Replacement: Inspect and clean regularly, replace as needed based on operating conditions (dusty environments require more frequent cleaning). Spark Plug Replacement: Refer to manual, typically every 300-500 operating hours or as performance dictates. Valve Clearance Adjustment: Refer to manual, typically every 600-1000 operating hours or annually. Fluid Specifications Engine Oil Capacity: Approximately 1.59 US qt (1.5 L) without filter change, 1.72 US qt (1.6 L) with filter change. Coolant Type: Permanent type anti-freeze coolant (50/50 mixture of Yamaha-specific coolant and distilled water recommended). Brake Fluid Type:...