The Bruin 350 and 400 are versatile All-Terrain Vehicles (ATVs) produced for the 2004 and 2005 model years. These ATVs are engineered for a balance of utility and recreational use, featuring a robust air-cooled, 4-stroke SOHC engine available in 348cc and approximately 386cc displacements. Known for a commitment to reliability and quality, the Bruin series offers dependable performance, often equipped with automatic Ultramatic® transmissions and selectable 2WD/4WD drive systems. These ATVs are designed to handle a variety of terrains, making them suitable for trail riding, farm work, and general outdoor exploration, embodying a long heritage in powersports innovation. This comprehensive Workshop Service Repair Manual provides in-depth guidance for the Bruin 350 and 400 ATVs. It covers all essential aspects of maintenance, repair, and diagnosis, including detailed procedures for the engine, fuel system, transmission, drivetrain, suspension, steering, brakes, and electrical systems. The manual is designed to empower owners, DIY enthusiasts, and professional technicians with the knowledge required for routine maintenance, troubleshooting, and complete overhauls. With clear, step-by-step instructions and detailed illustrations, this resource ensures that users can effectively maintain their vehicle, perform necessary repairs, and keep their ATV in optimal working condition. 🏷️ Basic Information Identification Make: Yamaha Model: Bruin 350 / 400 Model Variant: ATV (All-Terrain Vehicle) Years Covered: 2004, 2005 👋 Introduction Market Position Target Audience: DIY enthusiasts, owners, professional technicians, mechanics, workshops. Competitive Analysis Value Proposition: Enables users to save money by performing their own repairs, servicing, and maintenance. Key Features Authenticity: Original Yamaha manual, same used by professionals. Comprehensiveness: Highly detailed, covers everything needed for repair, service, restoration, maintenance, rebuilding, or diagnosis. Usability: Clear step-by-step instructions, troubleshooting support for immediate problem fixing. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Repair Manual Language: English Format: PDF Download Delivery Method: Instant Download, Digital E-book File Types: PDF, ZIP, RAR, EXE (depending on source compression) Page Count: Not explicitly stated, but implied to be comprehensive, potentially large file size (up to 5GB) 📖 Manual Coverage Systems Covered Engine: Yes (Removal/Installation, Cylinder Head/Valve, Cylinder/Piston, Crankshaft/Primary shaft, Crankcase, Troubleshooting) Fuel System: Yes (Inspection, Adjustment, Components) Transmission Drivetrain: Yes (Clutch, Gearshift Linkage, Sub transmission, Crankcase, Transmission) Suspension Steering: Yes (Front Wheel/Suspension, Rear Wheel/Suspension) Brakes: Yes (Hydraulic Brake System) Electrical System: Yes (Battery/Charging System, Ignition System, Electric Starter, Switches) Lubrication: Yes (General Information) Maintenance Preventative: Yes (Preventative Maintenance, Inspection and Adjustment) Troubleshooting: Yes (Dedicated section for troubleshooting and problem-solving) Procedures Included Routine Maintenance: Yes (Implied through 'service', 'maintain', 'preventative maintenance') Diagnostic Procedures: Yes (Covered under troubleshooting and detailed component breakdowns) Repair Procedures: Yes (Detailed step-by-step instructions for repair, restoration, rebuild) Disassembly Reassembly: Yes (Engine removal/installation, component breakdowns, exploded views) Technical Specifications: Yes (Implied through workshop manual content) Wiring Diagrams: Not explicitly mentioned, but common in workshop manuals. Electrical system coverage suggests potential for this. Technical Depth Depth Of Coverage: Comprehensive (Factory level, professional technician usage) Diagnostic Capabilities: Advanced (Troubleshooting specific problems, component testing) Repair Scope: Complete (From basic adjustments to major component rebuilds) Illustration Quality: High (Illustrated with clear step-by-step instructions, zoomable illustrations, detailed component explosions, exploded views) 📊 Manual Specifications File Format Primary Format: PDF Accessibility: Viewable on any computer (Windows, Linux, Mac) with a PDF reader. Portability: Savable to computer, iPad, hard disk, etc. Printability: Printable from any computer and printer, no restrictions. Searchability: Likely text-searchable if it's a well-formatted PDF, but not explicitly guaranteed. Print Quality Quality Standard: Very best quality (Manufacturer produced) Binding Type Binding: N/A (Digital download, not a physical book) Paper Type Paper Quality: N/A (Digital download, not a physical book) Additional Features Compression Handling: Requires WinZip or WinRAR for unzipping if provided in a compressed format. Download Limitations: Three days after payment to download and save the manual. No lifetime storage space provided by the seller. Internet Requirement: Required for download; internet connection needed after payment. ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC, 2-valve Engine Displacement: 348cc (Bruin 350), 386cc (Bruin 400 - likely based on Wolverine 350/Grizzly 350 engine architecture, but potentially different from advertised 400cc designation which might be market-specific) - Actual 400cc designation for Bruin is less common, often referring to models with slightly larger engines derived from existing platforms. Bore X Stroke: 82 mm x 67.2 mm (Bruin 350 - approximate) Compression Ratio: 9.1:1 (Bruin 350 - approximate) Performance Horsepower: Not specified in product info, but typically in the 20-25 HP range for this class. Torque: Not specified in product info. Fuel System Fuel Delivery: Carburetor (Mikuni BSR33 for 350 model) Fuel Type: Unleaded gasoline Fuel Tank Capacity: Approx. 3.2 US gal (12 L) 🔧 Transmission Standard Transmission Type: Automatic (Yamaha Ultramatic®) Drive System: Shaft drive, 2WD/4WD selectable (with differential lock on some models) Gearbox Type: CVT (Continuously Variable Transmission) with high/low range and reverse. Features Engine Braking: Yes (inherent in CVT system) 📐 Dimensions Weights Dry Weight:...