Basic Information Identification Make: Yamaha Model: Bruin 250 / Big Bear 250 Year: 2007 Type: ATV (All-Terrain Vehicle) Product Name: 2007 Yamaha BRUIN 250 / BIG BEAR 250 ATV Service Repair Maintenance Overhaul Manual PDF Download Introduction Market Position Target Audience: Yamaha ATV owners, mechanics, and repair shops requiring detailed technical information for maintenance and repair of the 2007 Bruin 250 and Big Bear 250 models. Value Proposition: Provides the same comprehensive information used by authorized Yamaha dealers, ensuring accurate and efficient service. Competitive Analysis Comparison To Scanned Manuals: Superior quality compared to scanned manuals due to digital creation, offering zoomable, non-blurry text and images. Key Features Organization: Procedures are organized in a sequential, step-by-step format for ease of use. Diagrams: Includes exploded diagrams before each disassembly section for clear identification of parts and assembly order. Quality Guarantee: Guaranteed to be the highest quality manual available for the specified models. Manual Details Coverage Areas Manual Type: Service Repair Maintenance Overhaul Manual Language: English Format: PDF Download Models Covered: Yamaha Bruin 250, Yamaha Big Bear 250 Year Coverage: 2007 Page Count Estimated Page Count: Varies by specific edition, typically 300-500 pages for a comprehensive service manual. Manual Coverage Systems Covered Engine: Complete engine disassembly, inspection, repair, and assembly including top-end and bottom-end components. Fuel System: Carburetor assembly, adjustment, cleaning, fuel pump, fuel lines, and fuel tank maintenance. Transmission: Automatic transmission (CVT - Continuously Variable Transmission) operation, maintenance, and repair, including belt inspection and replacement. Drivetrain: Shaft drive system, front and rear differentials, driveshafts, U-joints, and wheel bearings. Suspension: Front and rear suspension systems, shock absorbers, springs, control arms, and bushings. Brakes: Front and rear brake systems, including hydraulic calipers, brake lines, master cylinder, brake pads, and rotor maintenance. Electrical System: Ignition system, starting system, charging system (stator, regulator/rectifier), battery, lighting, and wiring diagrams. Cooling System: Air-cooled engine, cooling fins, and related components. Chassis And Frame: Frame inspection, welds, and related structural components. Bodywork And Plastics: Fairings, fenders, seat, handlebars, and trim panel removal and installation. Troubleshooting: Diagnostic procedures for common problems and symptoms. Procedures Included Scheduled Maintenance: Oil changes, filter replacements, lubrication points, spark plug service, and air filter cleaning/replacement. Disassembly And Assembly: Detailed step-by-step instructions for component removal and reinstallation. Inspection And Testing: Procedures for checking component wear, clearances, and functionality. Repair And Rebuilding: In-depth instructions for repairing and rebuilding major components. Torque Specifications: Critical torque values for all fasteners and critical components. Wiring Diagrams: Comprehensive electrical system wiring schematics. Technical Depth Depth: Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts. Covers everything from basic maintenance to complete engine and transmission overhauls. Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Resolution: High-resolution, computer-generated (not scanned). Text and images remain sharp when zoomed. Clarity: Clear, crisp text and diagrams for easy reading and identification of parts and procedures. Searchability: Likely text-searchable PDF for quick access to specific information. Binding Type Digital Binding: N/A (Digital Download) Paper Type Digital Paper Emulation: N/A (Digital Download) Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC, single-cylinder Displacement: 249 cc (Cubic Centimeters) Bore X Stroke: 74.0 mm x 58.0 mm (Approximate, typical for this class) Compression Ratio: 9.2:1 (Approximate) Performance Horsepower: Estimated 14-16 HP (Horsepower), actual figures may vary by tuning and region. Torque: Estimated 13-15 lb-ft (Pound-feet), actual figures may vary. Fuel System Fuel Delivery: Carburetor (e.g., Mikuni BSR26) Fuel Type: Unleaded gasoline (Octane rating typically 87 or higher) Ignition Ignition System: CDI (Capacitor Discharge Ignition) Lubrication Oil Type: Yamalube 4 (or equivalent 4-stroke motorcycle/ATV oil with JASO MA certification), SAE 10W-40 or 20W-50 depending on climate. Oil Capacity: Approx. 1.7 L (1.8 US qt) with filter change. Starting System Starter: Electric Starter Transmission Standard Transmission Type: Automatic (CVT - Continuously Variable Transmission) with Ultramatic system Drive System: 2WD/4WD selectable, shaft drive Features Gearing: High/Low range, Neutral, Reverse Maintenance Transmission Fluid Type: Yamaha Genuine Gear Oil 80W-90 (or equivalent API GL-4 gear oil). Transmission Fluid Capacity: Approx. 0.2 L (0.21 US qt). Dimensions Exterior Length: Approx. 76.8 in (1950 mm) Width: Approx. 42.9 in (1090 mm) Height: Approx. 44.5 in (1130 mm) Wheelbase: Approx. 49.2 in (1250 mm) Weights Dry Weight: Approx. 500 lbs (227 kg) Ground Clearance: Approx. 7.0 in (178 mm) Cargo Front Rack Capacity: Approx. 88 lbs (40 kg) Rear Rack Capacity: Approx. 176 lbs (80 kg) Tires Front Tire Size: AT22x7-10 Rear Tire Size: AT24x10-9 Safety Features Ratings Atv Safety Considerations: As an ATV, proper riding gear, training, and adherence to safety guidelines are paramount. The manual will cover operational safety and maintenance checks relevant to safe operation. Active Features Braking System: Hydraulic disc brakes front and rear, providing reliable stopping power. Passive Features Chassis Design: Rugged steel frame designed for off-road durability. Lighting: Dual headlights and taillight for visibility. Technology Features Infotainment Infotainment System:...