🏷️ Basic Information Identification Make: Yamaha Model: Timberwolf 250 Vehicle Type: ATV (All-Terrain Vehicle) Generation Generation Designation: First Generation Codes Chassis Code: YFB250 👋 Introduction Market Position Segment: Entry-level to Mid-range Utility ATV Target Audience: Recreational riders, farmers, light utility users Competitive Analysis Key Competitors: Honda FourTrax 300, Kawasaki Bayou 300, Suzuki QuadRunner 250 Key Features Vehicle Highlights: Reliable 250cc engine, comfortable riding position, decent utility for its class, good value proposition Manual Value: Provides comprehensive DIY repair and maintenance capability, saving on dealership service costs. 📋 Manual Details Coverage Areas Applicable Years: 1991-1998 Specific Models Covered: YFB250D, YFB250D-MNH, YFB250E, YFB250F, YFB250UJ, YFB250UJ-MNH, YFB250H, YFB250H-MNH, YFB250UH, YFB250UG-MNH, YFB250G, YFB250G-MNH Drive Type Coverage: 2WD and non-2WD models Page Count Estimated Page Count: Comprehensive (specific number not provided, but implied extensive due to supplementary manuals) Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Major Systems: General Information, Maintenance, Fuel System, Cooling System, Engine, Transmission, Clutching, Final Drive, Body and Frame, Steering and Suspension, Brakes, Electrical System, Wiring Diagrams, Troubleshooting Procedures Included Repair And Maintenance: Removal and installation of components, step-by-step repair procedures, assembly illustrations, diagrams, exploded parts views, troubleshooting guides, service information Technical Depth Level Of Detail: Comprehensive (covers all aspects of repair, from basic maintenance to detailed component repair) 📊 Manual Specifications File Format File Type: PDF Software Requirements: No special software required; viewable on standard computers with built-in PDF readers Print Quality Quality: Identical to printed book quality, clear illustrations and diagrams Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, Air-cooled, SOHC Displacement: 230 cc (Approx.) Bore X Stroke: Specifications available within the manual Performance Horsepower: Estimated 15-18 HP (varies by model year and tuning) Torque: Specifications available within the manual Fuel System Fuel Delivery: Carburetor (Mikuni VM series typically) Fuel Type: Unleaded Gasoline 🔧 Transmission Standard Type: 5-speed manual with automatic clutch (semi-automatic) Reverse Gear: Yes Optional Type: N/A for this model range Features Clutch Operation: Centrifugal automatic clutch Final Drive: Shaft drive to rear wheels 📐 Dimensions Exterior Length: Specifications available within the manual Width: Specifications available within the manual Height: Specifications available within the manual Weights Dry Weight: Approx. 220 kg (485 lbs) - varies by sub-model Curb Weight: Specifications available within the manual Payload Capacity: Specifications available within the manual 🛡️ Safety Features Ratings Crash Test Results: N/A (ATVs typically do not undergo standardized automotive crash testing) Active Features Braking System: Disc brakes (front and rear) Parking Brake: Mechanical parking brake Passive Features Lighting: Headlights, taillight/brake light 💡 Technology Features Infotainment Infotainment System: N/A (basic utility vehicle with no integrated infotainment) Driver Assistance Assistance Features: N/A Connectivity Connectivity Options: N/A Lighting Headlight Type: Halogen 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific mileage/hours (typically 100 hours or annually) Air Filter Cleaning: Refer to manual for specific intervals (frequent cleaning recommended for dusty conditions) Spark Plug Replacement: Refer to manual for specific intervals Fluid Specifications Engine Oil Type: Yamalube (or equivalent API SG, SAE 10W-30 or 20W-40 depending on temperature) - refer to manual for exact specification Engine Oil Capacity: Specifications available within the manual Transmission Oil Type: Refer to manual for specific grade and type (often a shared sump with engine oil or a separate gear oil) Brake Fluid Type: DOT 3 or DOT 4 (check manual for specific recommendation) Known Issues Common Wear Items: Brake pads, tires, drive belts (if applicable), suspension bushings, carburetor jets Potential Failures: Carburetor gumming due to fuel storage, starter motor issues, occasional stator failures (common on older electrical systems) Diagnostic Challenges: Intermittent electrical gremlins, carburetor tuning for altitude or temperature changes 📚 Vehicle History Brand Heritage Yamaha Atv Legacy: Yamaha has a long history of innovation in ATVs, pioneering many features and establishing itself as a leading manufacturer. Model Evolution Timberwolf Positioning: The Timberwolf 250 was Yamaha's offering in the popular 200-250cc class, known for its reliability and ease of use. Production Production Period: 1991-1998 (as covered by the manual) Manufacturing Location: Likely Japan or USA 🏆 Awards & Recognition Recognitions Industry Awards: No specific awards are highlighted for this model, but it was well-regarded for its segment. Ratings Consumer Reviews: Generally positive for reliability and ease of use, especially for its era. Certifications Manufacturing Standards: Manufactured to Yamaha's stringent quality and safety standards.