🏷️ Basic Information Identification Make: Yamaha Model: WR250 Model Variants Covered: WR250, WR250FR, WR250F, WR 250 FR, WR 250 F, YZ, YZ-WR250, YZWR250, ENDURO, 2 TRAC, 2TRAC, 2-TRAC Codes Fsm Code: Factory Service Manual 👋 Introduction Market Position Market Position: The Yamaha WR250 series represents Yamaha's commitment to the off-road and enduro racing segment, offering a blend of performance, durability, and off-road capability. This manual caters to owners and technicians focused on maintaining and repairing these specialized motorcycles. Competitive Analysis Competitive Analysis: In its production era, the WR250 competed against other specialized off-road machines from manufacturers like KTM, Husqvarna, and Honda in the enduro and cross-country racing categories. Its reputation for robust engineering and accessible maintenance makes it a favored platform for enthusiasts. Key Features Key Features: Comprehensive coverage, detailed illustrations, electrical system diagnostics, troubleshooting guides, printable pages, instant download delivery. Value Proposition Value Proposition: Provides factory-level repair information, empowering owners to perform maintenance and repairs themselves, saving on labor costs and ensuring proper upkeep of their Yamaha WR250. 📋 Manual Details Coverage Areas Covered Years: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Page Count Page Count: 343 Manual Type Manual Type: Workshop Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine disassembly, assembly, tuning, and diagnostics Fuel System: Carburetor service, fuel tank, fuel lines, fuel pump (if applicable) Ignition System: CDI unit, spark plug, ignition coils, timing Transmission And Drivetrain: Clutch operation, gearbox disassembly/assembly, chain drive maintenance Cooling System: Radiator, coolant, fan operation (if applicable) Exhaust System: Muffler, header pipe, emissions control (if applicable) Suspension: Front fork service (damping, seals), rear shock absorber service, linkages Brakes: Hydraulic brake system, caliper service, master cylinder, brake pads, brake fluid replacement Electrical System: Wiring diagrams, lighting, battery, starter motor, charging system, troubleshooting Bodywork And Chassis: Frame inspection, body panel removal/installation, seat, fenders Wheels And Tires: Spoke tension, wheel bearing service, tire pressure, tire replacement Procedures Included Scheduled Maintenance: Oil changes, filter replacements, chain adjustments, spark plug inspection/replacement Troubleshooting: Diagnostic procedures for common and uncommon issues, fault finding Repair Procedures: Step-by-step instructions for all major component repairs and replacements Rebuilds: Engine and transmission rebuild procedures with detailed specifications Adjustments: Carburetor jetting, suspension sag, clutch lever free play Technical Depth Technical Depth: Comprehensive factory-level detail, suitable for professional mechanics and experienced DIY enthusiasts Illustrations: Detailed illustrations, drawings, and photographs for each procedure Diagnostic Charts: Included for electrical systems and engine performance issues Torque Specifications: All critical fasteners torque values provided Clearances: Valve clearances, piston ring end gap, bearing clearances 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Printable pages with high-resolution images and text Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) File Size File Size: Up to 1 Gigabyte (due to compression) Searchability Searchability: Searchable PDF for quick information retrieval Accessibility Accessibility: Compatible with all PC-based Windows operating systems and Mac ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 4-stroke, DOHC, 5-valve, single-cylinder (Note: Specific engine configurations may vary slightly across the model years covered within this manual, but the core principles of the WR250 engine family are addressed.) Bore X Stroke: Varies by specific model year and variant, typically around 70 mm x 64.4 mm (e.g., WR250F models). The manual will provide exact figures for each covered variant. Displacement: 250cc class (exact displacement specified within the manual for each model). Performance Horsepower: Estimates range from approximately 30-40 HP depending on model year and tuning. Precise figures are detailed in the manual. Torque: Torque figures are specific to engine tune and year, details will be in the manual. Fuel System Carburetion: Mikuni flat-slide carburetors (e.g., VM34 or similar) are common, with detailed jetting and adjustment procedures provided. Fuel Type: Unleaded gasoline (octane rating specified in manual). Cooling System Cooling Type: Liquid-cooled 🔧 Transmission Standard Transmission Type: Constant-mesh, 5-speed Optional Optional Transmission: N/A for this model line. Features Clutch Type: Wet, multi-plate Gear Ratios: Specific gear ratios for each speed are provided in the manual. Transmission Fluid: Yamaha recommends specific gearbox oil, the manual will specify type and capacity. 📐 Dimensions Exterior Length: Varies by specific model variant; detailed specifications available in the manual. Width: Varies by specific model variant; detailed specifications available in the manual. Height: Varies by specific model variant; detailed specifications available in the manual. Weights Dry Weight: Typically in the range of 230-250 lbs (104-113 kg) for WR250 models of this era. Precise figures for each variant are in the manual. Wet Weight: Weight with all fluids, varies by model. Manual will detail. Fuel Capacity: Typically around 2.5-3.0 gallons (9.5-11.4 liters), manual will confirm exact capacity. 🛡️ Safety Features Ratings Safety Ratings: As an off-road motorcycle, formal crash ratings like automotive...