This manual covers the Yamaha Bruin 250 (YFM250) model, produced for the 2005 and 2006 model years. It also serves as a base manual for the 1999-2004 Yamaha Bear Tracker, with supplements detailing the Bruin 250 updates. The Bruin 250 is an air-cooled, 4-stroke utility ATV known for its reliability and balanced performance, featuring a 249 cc engine, automatic CVT transmission with reverse, and shaft drive. Its design prioritizes practicality for trail riding and light work, building on Yamaha's established heritage in ATV manufacturing. This comprehensive factory service and repair manual, presented in English, provides in-depth guidance for owners and technicians. It details all aspects of the vehicle, including engine overhaul, transmission maintenance, electrical system troubleshooting, chassis and bodywork, fuel system servicing, and cooling system procedures. The manual includes scheduled maintenance, detailed repair and rebuild instructions, adjustment procedures, and crucial technical specifications such as torque values, supported by numerous illustrations and part diagrams to facilitate accurate upkeep and repair. 🏷️ Basic Information Identification Make: Yamaha Model: Bruin 250 Model Variant: YFM250 Production Years Covered: 2005-2006 Related Models Covered: 1999-2004 Yamaha Bear Tracker Codes Product Identifier: Yamaha Bruin 250 Service Manual Repair 2005-2006 YFM250 PDF Download 👋 Introduction Market Position Target Audience: Owners and technicians seeking comprehensive repair and maintenance information for the Yamaha Bruin 250 (2005-2006) and related Bear Tracker models. Competitive Analysis Value Proposition: Offers a factory-level, detailed guide covering all aspects of the ATV, including extensive troubleshooting and rebuild procedures, at a fraction of the cost of a printed manual. Key Features Feature 1: Factory OEM specifications and procedures. Feature 2: Comprehensive coverage of both Bruin 250 and Bear Tracker models. Feature 3: Detailed illustrations, diagrams, and part breakdowns. Feature 4: Extensive troubleshooting section with error code references. Feature 5: Printable and savable digital format with no restrictions. 📋 Manual Details Coverage Areas Primary Coverage: Factory Repair Manual for 2005-2006 Yamaha Bruin 250 ATV Supplementary Coverage: Base manual for 1999-2004 Yamaha Bear Tracker with supplement for Bruin 2005-2006 Page Count Total Pages: 396 Manual Type Type: Factory Service/Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete overhaul, teardown, rebuild, specifications, troubleshooting, carburetor/EFI details, valve clearance, piston, crankshaft, camshaft, timing, lubrication. Transmission: Drive train, reverse gear, primary reduction gear, shaft drive, clutch operation, maintenance, and repair. Electrical System: Ignition system, starter, battery, charging system, stator, rectifier, magneto, fuses, switches, lights, error codes, no spark troubleshooting. Chassis And Body: Frame, suspension (front forks, rear swingarm, struts), brakes (front/rear, pads, rotors), steering system, wheels, tires, fenders, plastics, body panels, seat, handlebars. Fuel System: Carburetor (main jet, pilot jet, slow jet, mixture screw), fuel pump, fuel injection (PGM-FI), air intake. Cooling System: Radiator, coolant, flushing procedures. Exhaust System: Muffler, exhaust components, maintenance. Procedures Included Maintenance: Scheduled maintenance, fluid changes (engine oil, coolant), tire pressure, brake adjustments, general upkeep. Troubleshooting: Comprehensive troubleshooting guides for common problems, error code diagnosis, no spark issues, starting problems, performance issues. Repair And Rebuild: Complete tear down and rebuild procedures for all major components (engine, transmission, suspension, brakes). Installation: Procedures for installing various parts and components. Adjustment: Carburetor adjustment, valve clearance adjustment, throttle cable adjustment. Technical Depth Depth: Factory-level detail for complete rebuilds and advanced diagnostics, suitable for DIY enthusiasts and professional mechanics. Illustrations: Includes detailed pictures and part diagrams. Specifications: Includes crucial torque specifications. 📊 Manual Specifications File Format Format: PDF Searchability: Searchable text Print Quality Printing Rights: No restrictions on printing Binding Type Binding Type: Digital Download (PDF) Paper Type Paper Type: Not Applicable (Digital) Storage Storage Rights: No restrictions on saving/burning to disc Features Navigation: Clickable chapters ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC, 2-valve Displacement: 249 cc Bore X Stroke: 74.0 mm x 57.9 mm Compression Ratio: 10.0:1 Performance Horsepower: Typically around 16-18 HP (specific factory figures may vary and are detailed in the manual) Torque: Specific torque figures for engine components are detailed in the manual. Fuel System Fuel Delivery: Carburetor (Mikuni BSR33) or potentially PGM-FI on some variants (manual will specify exact system). Fuel Type: Unleaded gasoline Fuel Tank Capacity: Approximately 2.3 gallons (manual will provide exact capacity and reserve) Lubrication Oil Type: Yamaha recommends specific motorcycle-grade engine oil. Manual will specify viscosity (e.g., SAE 10W-30 or 20W-40) and API classification. Oil Capacity: Approximately 1.7-1.9 liters (manual will specify exact capacity with and without filter change). Ignition Ignition System: CDI (Capacitor Discharge Ignition) with electronic advance. 🔧 Transmission Standard Type: Automatic Continuously Variable Transmission (CVT) with Ultramatic system. Optional Optional Features: Reverse gear. Features Drive Type: Shaft Drive Gear Selection: Forward, Neutral, Reverse (F-N-R). 📐 Dimensions Exterior Length: Approximately 73.4 inches (manual will confirm exact dimensions) Width: Approximately 43.7 inches (manual will confirm exact dimensions) Height: Approximately 44.0 inches (manual will confirm exact dimensions) Weights Dry Weight: Approximately 489 lbs (manual will...