This manual covers the 2006 Yamaha Bruin 350 4WD, a capable All-Terrain Vehicle (ATV) designed for utility and recreational use. Built upon Yamaha's legacy of producing durable and reliable ATVs, the Bruin 350 4WD offers a comfortable ride and dependable performance, making it a solid choice for tackling various terrains. Key features include its 348cc 4-stroke engine, automatic transmission with a selectable 2WD/4WD system, and hydraulic disc brakes for confident stopping power. This comprehensive factory service manual provides detailed information for owners and technicians performing maintenance, diagnostics, and repairs. It includes in-depth coverage of the engine, fuel and lubrication systems, electrical components, transmission, drivetrain, suspension, steering, and brake systems. The manual offers step-by-step procedures for routine maintenance, component overhaul, troubleshooting, and includes essential torque specifications and wiring diagrams, all presented with clear illustrations to ensure accurate and efficient service. 🏷️ Basic Information Identification Make: Yamaha Model: Bruin 350 4WD Year: 2006 Vehicle Type: All-Terrain Vehicle (ATV) Product Type: Repair Service Manual Codes Chassis Code Range: Likely YFM350 👋 Introduction Market Position Target Audience: Owners and technicians performing maintenance, diagnostics, and repairs on the 2006 Yamaha Bruin 350 4WD. Competitive Analysis Value Proposition: Provides factory-level repair information, ensuring accurate and efficient maintenance, comparable to dealer-issued manuals. Key Features Digital Access: Instant PDF download offers immediate access without shipping delays. Navigational Tools: Bookmarks and searchable text enhance usability in workshop environments. 📋 Manual Details Coverage Areas General Information: Included Frame And Body: Included Exhaust System: Included Maintenance Procedures: Included Lubrication System: Included Cooling System: Included Fuel System: Included Engine Mechanical: Included Clutch System: Included Alternator And Charging System: Included Transmission And Drivetrain: Included Front Wheel Suspension And Steering: Included Rear Wheel Suspension: Included Brake System: Included Electrical System: Included Lights And Switches: Included Wiring Diagrams: Included Troubleshooting: Included Page Count Estimated Page Count: Comprehensive (exact count not specified, but implies full factory coverage) Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF Download Manual Specifications File Format: PDF Searchability: Fully searchable text Bookmarking: Completely bookmarked for easy navigation Printability: All pages are printable Authenticity: Genuine factory manual, not generic information File Quality: Real files, not scans, high clarity 📖 Manual Coverage Systems Covered Engine Mechanical Components: Detailed coverage of engine assembly, disassembly, components (pistons, cylinders, valves, camshafts, crankshafts). Fuel And Carburetion: In-depth information on fuel delivery, carburetor adjustment, cleaning, and repair. Cooling System: Details on radiator, fan, coolant flow, and thermostat. Lubrication System: Information on oil pump, oil filter, oil passages, and lubrication points. Ignition System: Coverage of spark plug, ignition coil, CDI unit, and timing. Electrical System Components: Includes battery, charging system (stator, rectifier/regulator), starter motor, and related wiring. Transmission And Drivetrain: Detailed procedures for transmission removal, disassembly, inspection, and reassembly, including CVT operation (if applicable). Clutch Operation: Covers clutch engagement, disengagement, and component servicing. Suspension And Steering: Maintenance and repair of front and rear suspension components, including shocks, A-arms, bearings, and steering system. Brake System Components: Details on hydraulic brake systems, calipers, master cylinders, brake lines, and pads. Bodywork And Frame: Procedures for removing and installing body panels, fenders, and frame inspections. Exhaust System Components: Information on exhaust pipe and muffler maintenance. Procedures Included Routine Maintenance: Oil changes, filter replacements, lubrication, adjustments. Diagnostic Procedures: Systematic troubleshooting guides for common and uncommon issues. Component Disassembly And Reassembly: Step-by-step instructions for taking apart and putting back together all major vehicle components. Torque Specifications: Crucial torque values for critical fasteners throughout the vehicle. Wiring Diagram Interpretation: Guidance on reading and understanding electrical schematics. Major Component Overhaul: Detailed rebuild procedures for engine, transmission, and other major systems. Technical Depth Depth Of Coverage: Factory-level detail suitable for professional technicians and advanced DIY enthusiasts. Illustrations And Diagrams: Abundant, high-quality illustrations and diagrams for clarity. Troubleshooting Methodology: Systematic approach to diagnosing problems. ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, 2-valve Displacement: 348cc Bore X Stroke: 83.0 mm x 64.5 mm (typical for this engine family) Compression Ratio: 9.2:1 (typical) Performance Horsepower: Approx. 21-23 HP (estimated, subject to specific tuning) Torque: Approx. 20-22 lb-ft (estimated) Fuel System Fuel Delivery: Mikuni BSR33 carburetor Fuel Type: Unleaded gasoline (87 octane or higher recommended) Ignition System Ignition Type: Digital TCI (Transistor Controlled Ignition) 🔧 Transmission Standard Transmission Type: Automatic (Torque Converter type with CVT - Constant Variable Transmission) Features Drive Modes: 2WD/4WD selector Gear Selection: Forward, Neutral, Reverse 📐 Dimensions Exterior Length: Approx. 77.2 inches Width: Approx. 43.5 inches Height: Approx. 44.2 inches Weights Dry Weight: Approx. 560 lbs Fuel Capacity: Approx. 3.2 gallons 🛡️ Safety Features Active Features Braking System: Hydraulic disc brakes (front and rear) Passive Features Rollover Protection: Standard ATV frame and handlebar design. 💡 Technology Features Infotainment Infotainment System: Not applicable to this utility ATV model. Driver Assistance Driver Assistance Features: Not applicable to this utility ATV model. Connectivity...