🏷️ Basic Information Identification Make: Yamaha Model: Bruin Model Variant: 350 / 400 Year: 2004 Codes Vin Decoder Information: VIN details not directly available in product description; manual is year/model specific. 👋 Introduction Market Position Target Audience: DIY mechanics, professional technicians, ATV enthusiasts, owners seeking in-depth maintenance and repair knowledge. Competitive Analysis Value Proposition: Provides factory-level diagnostic and repair information, equivalent to what official Yamaha dealerships utilize, at a fraction of the cost of dealership service. Key Features Manufacturer Source: Written by the manufacturers, ensuring accuracy and completeness. Diagram Emphasis: Features thousands of pages of diagrams for clear procedural guidance. Accessibility: Instant download in a user-friendly PDF format compatible with multiple operating systems. 📋 Manual Details Coverage Areas Primary Coverage: Workshop Service & Repair Secondary Coverage: Diagnostics, Maintenance, Troubleshooting Page Count Estimated Page Count: Thousands of pages (as stated in description) Manual Type Type: Professional Workshop Service & Repair Manual Language Language: English Format Digital Format: PDF (Acrobat) Compatibility Operating Systems: Windows & MAC compatible 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, top-end rebuild, bottom-end rebuild, cooling system, lubrication system, fuel system, ignition system, starting system, charging system, exhaust system. Drivetrain Systems: Transmission overhaul (if applicable to model variants), clutch service, driveshafts, differentials, final drive. Chassis Systems: Suspension (front and rear), steering system, braking system (hydraulic and mechanical components), wheels, tires. Electrical Systems: Wiring diagrams, lighting systems, electrical components troubleshooting, battery, starter, alternator, ignition, sensors, actuators. Bodywork And Frame: Body panel removal/installation, frame inspection and repair (if applicable), seat removal/installation, handle bar and controls. Procedures Included Maintenance Procedures: Oil changes, filter replacements, spark plug replacement, air filter cleaning/replacement, chain adjustment and lubrication, brake pad replacement, fluid level checks and top-ups. Repair Procedures: Engine component replacement (pistons, rings, valves), carburetor overhaul, transmission repair, suspension component replacement, brake caliper rebuild, electrical component diagnosis and replacement. Diagnostic Procedures: Troubleshooting guides based on symptoms, diagnostic trouble codes (DTCs) interpretation (if applicable to the era), testing of electrical circuits and components. Technical Specifications: Torque settings for all fasteners, fluid capacities, recommended fluid types, engine specifications (bore, stroke, compression ratio), electrical system voltage and current ratings. Technical Depth Depth Of Coverage: Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds, mirroring dealer workshop procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable PDF, facilitating quick information retrieval. Print Quality Output Quality: Professional, with high-quality diagrams and detailed instructions. Binding Type Digital Binding: N/A (Digital Download) Paper Type Digital Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Likely single-cylinder, 4-stroke (common for Bruin models) Displacement 350: 348cc (Yamaha's designation for the 350cc class, often a 348cc engine, e.g., YFM350 model) Displacement 400: 386cc (Yamaha's designation for the 400cc class, likely the YFM400, which used a 386cc engine) Performance Horsepower: Specific HP not provided; manual covers internal engine specifications for potential performance tuning or rebuilds. Torque: Specific torque not provided; manual contains torque specifications for all engine components. Fuel System Fuel Delivery: Likely Carburetor(s) for 2004 model year, covered in detail (jetting, float levels, cleaning). Cooling System Cooling Method: Likely air-cooled or oil-cooled, with specific radiator/oil cooler service procedures detailed. 🔧 Transmission Standard Transmission Type: Likely Automatic Transmission (CVT - Continuously Variable Transmission) with High/Low range and Reverse. Optional Transmission Options: Not applicable for this model/year, assumed standard automatic CVT. Features Cvt Service: Manual covers CVT belt inspection/replacement, sheave maintenance, and fluid changes. Gear Selection Mechanism: Detailed procedures for shifter linkage adjustment and maintenance. 📐 Dimensions Exterior Overall Length: Specifications not provided in product description; manual will contain exact measurements. Overall Width: Specifications not provided in product description; manual will contain exact measurements. Overall Height: Specifications not provided in product description; manual will contain exact measurements. Weights Curb Weight: Specifications not provided in product description; manual will contain exact weight information. Towing Capacity: Specifications not provided in product description; manual will detail load capacities and towing limitations. 🛡️ Safety Features Ratings Crash Test Information: ATVs are not typically subjected to standardized crash testing like passenger vehicles; manual will focus on component integrity and safe operation. Active Features Braking System: Hydraulic disc brakes (front and rear typical), covered in detail, including master cylinder, calipers, and lines. Passive Features Frame Structure: Manual will detail frame inspection and maintenance for structural integrity. Handlebar Design: Procedures for safe handlebar installation and adjustments. 💡 Technology Features Infotainment Infotainment System: None (ATV, basic instrumentation: speedometer, odometer, indicator lights). Driver Assistance Electronic Aids: None (typical for a 2004 utility ATV). Connectivity Connectivity Features: None. Lighting Lighting System: Headlights, taillight, brake light; detailed wiring diagrams and bulb replacement procedures are included. 🔧 Maintenance Service Intervals Engine Oil Change: Typical intervals around 1000-2000 miles or annually, but manual will specify exact intervals and conditions. Air Filter Service: Regular inspection and cleaning, especially in dusty conditions,...