🏷️ Basic Information Identification Make: Yamaha Model: YFM350FAS Bruin Model Designation: Bruin 350 4x4 Year: 2004 Type: ATV (All-Terrain Vehicle) 👋 Introduction Market Position Segment: Mid-size utility ATV segment, known for versatility and reliability. Competitive Analysis Competitors 2004: Honda Rancher, Suzuki King Quad, Polaris Sportsman. Key Features Versatility: Suitable for recreational riding, light utility work, and trail exploration. Value Proposition Value: Provides essential information for safe operation and basic upkeep of the 2004 Yamaha Bruin 350. 📋 Manual Details Coverage Areas Primary Coverage: Operation, Maintenance, Specifications, Safety Secondary Coverage: Machine Identification, Pre-operation Checks, Cleaning, Storage Page Count Page Count: 174 Manual Type Manual Type: Owner's Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Covers engine operation, basic checks, and related maintenance. Drivetrain: Details on 4x4 operation and potential checks related to the drivetrain. Chassis And Suspension: Information on controls, riding posture, and pre-operation checks. Electrical: While not explicitly detailed, machine identification implies coverage of VIN and engine numbers. Controls And Instruments: Comprehensive explanation of control functions. Procedures Included Pre Operation Checks: Detailed list of checks to perform before operating the ATV. Operation Guidelines: Instructions on proper ATV operation and riding techniques. Periodic Maintenance: Covers routine maintenance tasks and adjustments. Cleaning And Storage: Guidance on how to clean and store the ATV for longevity. Safety Procedures: Extensive section dedicated to safety information and best practices. Technical Depth Depth: Owner-level maintenance and operation; not a full service or repair manual. 📊 Manual Specifications File Format File Format: PDF Software Compatibility: Adobe Acrobat Reader or compatible PDF viewer. Print Quality Printability: Printable Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, SOHC, air-cooled Displacement: 348cc Bore X Stroke: 83.0 mm x 64.5 mm Compression Ratio: 9.2:1 Performance Horsepower Estimate: ~18-20 HP (est.) Torque Estimate: ~20-22 lb-ft (est.) Fuel System Fuel Delivery: Carburetor (Teikei Y24P or similar) Fuel Type: Unleaded gasoline, 87 octane (minimum) Ignition Ignition System: CDI (Capacitor Discharge Ignition) Lubrication Oil Type: Yamalube 4 (or equivalent API SG or higher, SAE 10W-40) recommended. 🔧 Transmission Standard Transmission Type: Automatic (Yamaha Ultramatic®) Drive System: Shaft Drive, 2WD/4WD selectable Features Gear Selection: Forward, Neutral, Reverse Fluid Specifications Transmission Fluid: Yamaha Shin-Etsu G-236 or equivalent CVT fluid (check manual for exact spec). 📐 Dimensions Exterior Length: 76.8 inches (1950 mm) Width: 42.1 inches (1070 mm) Height: 43.7 inches (1109 mm) Weights Dry Weight: 540 lbs (245 kg) Ground Clearance: 7.1 inches (180 mm) Wheels And Tires Front Tire Size: AT25x8-12 Rear Tire Size: AT25x10-12 Wheelbase: 49.2 inches (1250 mm) 🛡️ Safety Features Ratings Atv Safety Guidelines: Emphasizes use of helmets, protective gear, and awareness of terrain. Active Features Braking System: Hydraulic disc brakes (front and rear). Passive Features Rollover Protection: Standard ATV design, emphasizes rider skill and caution. Operation Warnings Terrain Awareness: Warnings about operating on slopes, uneven surfaces, and water. 💡 Technology Features Infotainment Infotainment Features: N/A (Utility ATV, basic controls and instrumentation only). Driver Assistance Assistance Features: N/A (Basic utility ATV features). Connectivity Connectivity Options: N/A 🔧 Maintenance Service Intervals Initial Service: Typically around 100-200 miles or 1 month for break-in service (check manual). Oil Change Interval: Every 3 months or 1000 miles / 100 hours of operation (refer to manual for exact hours). Air Filter Cleaning: Regular inspection and cleaning recommended, especially in dusty conditions. Spark Plug Replacement: Refer to manual for recommended mileage/hours, typically 3,000-6,000 miles. Fluid Specifications Engine Oil Capacity: Approximately 2.0 liters (check manual for precise capacity with filter change). Coolant Type: Air-cooled engine, no coolant required. Brake Fluid: DOT 3 or DOT 4 hydraulic brake fluid. Known Issues Common Wear Items: Brake pads, tires, drive belts (CVT), and wheel bearings are common wear items. Preventative Maintenance Importance: Adhering to the maintenance schedule in the manual is crucial for longevity and performance. 📚 Vehicle History Brand Heritage Yamaha Atv Legacy: Yamaha has a long-standing history in powersports, including a significant presence in the ATV market since the early 1980s. Model Evolution Bruin Introduction: The Bruin line was introduced to offer a reliable, mid-size utility ATV, often positioned as a more accessible option compared to larger models. Production Manufacturing Location: Likely manufactured in Japan or USA (Yamaha has global manufacturing facilities). 🏆 Awards & Recognition Recognitions Industry Awards: No specific major industry awards for this model are readily documented, but Yamaha ATVs are generally recognized for reliability.