This manual covers the YFM350 Bruin Grizzly and YFM400 Kodiak all-terrain vehicles produced between 2003 and 2010. These versatile utility ATVs are known for their robust engineering, reliability, and user-friendly automatic transmissions, making them suitable for a wide range of recreational and work applications. The Bruin and Kodiak lines represent a commitment to durable, capable off-road vehicles, offering features like selectable 2WD/4WD and efficient liquid-cooled engines across various configurations, including 2WD, 4WD, and specialized Hunter editions. This comprehensive workshop service repair manual provides detailed information essential for the maintenance, troubleshooting, and repair of your ATV. It covers all aspects of the vehicle, from general information and specifications to in-depth procedures for the engine, cooling system, fuel system, drivetrain, chassis, and electrical system. With step-by-step instructions, high-quality diagrams, and detailed troubleshooting guides, this manual is an indispensable resource for owners and technicians alike, ensuring optimal performance and longevity of your Bruin or Kodiak. 🏷️ Basic Information Identification Make: Yamaha Model: YFM350 Bruin Grizzly / YFM400 Kodiak Model Variants: • YFM350 Bruin • YFM350 Bruin 4x4 • YFM350 Bruin Auto 2WD • YFM350 Bruin Auto 4x4 • YFM400 Kodiak • YFM400 Kodiak 2WD • YFM400 Kodiak 4WD • YFM400 Kodiak 4x4 Hunter • YFM400 Kodiak Auto 4x4 Model Years Covered: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Product Type: Service Repair Manual (PDF Download) 👋 Introduction Market Position Target Audience: Owners and mechanics seeking detailed repair and maintenance information for Yamaha ATVs. Competitive Analysis Value Proposition: Provides comprehensive, DIY-friendly guidance for a wide range of model years and variants, saving on dealership service costs. Key Features Manual Advantage: Encompasses multiple model years and variants, offering a broad spectrum of repair knowledge in a single, accessible PDF. 📋 Manual Details Coverage Areas Scope: Comprehensive from front bumper to rear Detailed Sections: • General Information • Specifications • Periodic Checks and Adjustments • Engine • Cooling System • Carburetion • Drive Train • Chassis • Electrical System • Troubleshooting Specific Model Years: Explicitly covers 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 model years, including specific variant codes listed in product information. Page Count Estimated Page Count: Likely several hundred pages (typical for comprehensive service manuals, actual count not provided but implied by scope and file size). Manual Type Type: Workshop Service Repair Manual Purpose: Intended for DIY repairs and comprehensive maintenance, providing step-by-step instructions and technical data. Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Mechanical Systems: • Engine (internal components, cylinder head, piston, crankshaft, etc.) • Cooling System (radiator, fan, coolant flow) • Fuel System (carburetor, fuel pump, fuel lines) • Lubrication System (oil pump, oil passages) • Ignition System (spark plugs, ignition coil, CDI unit) • Exhaust System • Transmission/Drive Train (CVT, gearbox, driveshafts, differentials, final drive) • Suspension System (front and rear suspension, shocks, A-arms) • Braking System (hydraulic brakes, calipers, master cylinder, brake lines) • Steering System • Frame and Bodywork Electrical Systems: • Battery and Charging System (stator, regulator/rectifier) • Ignition System • Lighting System (headlights, taillights, brake lights) • Instrumentation (speedometer, indicator lights) • Wiring Diagrams • Starter System Vehicle Specific Systems: 4x4 drivetrain operation, Ultramatic transmission engagement and maintenance, handlebar controls, lighting, and instrument panel functions. Procedures Included Maintenance And Routine Service: • Oil and filter changes • Spark plug replacement • Air filter cleaning/replacement • Coolant checks and flushes • Brake fluid checks and changes • Lubrication points • Tire pressure and wear checks • Battery maintenance • Carburetor cleaning and adjustment • Drive belt inspection and replacement (CVT) Repair And Rebuild: • Engine disassembly and reassembly • Transmission overhaul • Suspension component replacement • Brake system repair • Electrical component troubleshooting and replacement • Carburetor rebuilding • Chassis alignment and repair Troubleshooting: Diagnostic procedures for common and uncommon issues, fault finding guides, symptom analysis. Diagnostic Procedures: Includes detailed troubleshooting trees and diagnostic steps for electrical issues, starting problems, running issues, and drive train malfunctions. Technical Depth Depth: Complete workshop level detail, suitable for DIY mechanics and professional technicians. Covers detailed disassembly, assembly, specifications, and diagnostic procedures. Wiring Diagrams: Detailed electrical wiring diagrams are included for accurate diagnosis and repair of electrical systems. 📊 Manual Specifications File Format Quality: High quality diagrams and instructions, searchable text (typical for well-produced PDFs). Compatibility: Compatible with all versions of Windows & Mac. File Size Potential: Up to 1 Gigabyte (indicative of comprehensive content). Print Quality Printability: Designed for digital access, but printable for workshop use. Binding Type Type: N/A (Digital PDF Download) Paper Type Type: N/A (Digital PDF Download) ⚙️ Engine Specifications Primary Engine Type: Four-stroke, SOHC, 4-valve, single-cylinder (common across most variants). Displacement Yfm350: 348cc Displacement Yfm400: 400cc class (specific variants might vary slightly, but generally around this range). Bore X Stroke Yfm350: 72.5 mm x 65.0 mm (approximate, consult manual for...