This manual covers the Bruin 250 (YFM250) All-Terrain Vehicle (ATV) for the 2005 and 2006 model years. Known for its reliable 4-stroke, air-cooled 249 cc engine and automatic Ultramatic® CVT transmission, the Bruin 250 offers a balanced blend of utility and recreational capability. Its robust engineering and legacy in ATV manufacturing ensure a dependable performance for various terrains and tasks. The vehicle features selectable 2WD/4WD, hydraulic disc brakes, and a comfortable, stable ride, making it a capable choice for both work and play. This comprehensive manual, totaling 600 pages across its Service and Owner's sections, provides factory-level detail for maintenance, repair, and troubleshooting. It covers all essential systems, including the engine, fuel, ignition, transmission, drivetrain, suspension, brakes, and electrical systems, with clear, step-by-step instructions and detailed illustrations. Whether you are a DIY owner aiming for cost savings or a professional technician requiring precise guidance, this manual offers the in-depth information needed to keep your Bruin 250 in optimal condition. 🏷️ Basic Information Identification Make: Yamaha Model: Bruin 250 Model Code: YFM250 Vehicle Type: All-Terrain Vehicle (ATV) Applies To Model Years: 2005, 2006 👋 Introduction Market Position Target Audience: DIY owners, Professional Technicians, Workshops Competitive Analysis Advantage: Provides factory-level detail for DIY cost savings Key Features Comprehensiveness: Covers all aspects from routine maintenance to major repairs Ease Of Use: Clear, step-by-step instructions and detailed illustrations Accessibility: Digital download format for instant access on multiple devices 📋 Manual Details Coverage Areas Primary Coverage: Service, Owners, Workshop, Repair Scope: Comprehensive (Bumper to Bumper) Page Count Service Manual Pages: 444 Owner Manual Pages: 156 Total Pages Combined: 600 Manual Type Type: Factory Service Manual & Owner's Manual Language Language: English Format Digital Format: PDF Download File Delivery: Instant Download (via email link and checkout page) File Compatibility: Windows, Linux, Mac (requires PDF Reader) Archived Format: May be zipped (.zip, .rar) - requires WinZip or WinRAR 📖 Manual Coverage Systems Covered Engine: Complete Overhaul, Diagnosis, Repair, Tuning Fuel System: Carburetor, Fuel Pump, Fuel Tank, Lines Ignition System: CDI, Spark Plug, Coil, Timing Transmission: Automatic (CVT), Clutch, Drive System, Final Drive Drivetrain: Shaft Drive, Differential, Axles Suspension: Front and Rear Suspension, Shocks, A-Arms Brakes: Hydraulic Disc Brakes (Front and Rear), Master Cylinder, Calipers, Lines Electrical System: Wiring Diagrams, Battery, Charging System, Lighting, Starters, ECUs Steering: Handlebars, Tie Rods, Steering Knuckles Cooling System: Air Cooling (for this model) Bodywork Chassis: Frame, Fenders, Plastics, Seat Procedures Included Maintenance: Regular Scheduled Maintenance, Fluid Changes, Filter Replacement, Lubrication Troubleshooting: Diagnostic Procedures, Common Fault Identification, Solutions Repair: Component Removal, Installation, Rebuilding, Adjustment Restoration: Guidance for bringing an older unit back to optimal condition Diagnostics: System-specific diagnostic trees and checks Technical Depth Depth: Detailed, Factory-Level Illustrations: Detailed Pictures, Diagrams, Exploded Views Coverage Detail: Step-by-step instructions for all repair and maintenance tasks 📊 Manual Specifications File Format Type: Digital Download (PDF) Print Quality Printability: Printable without restrictions Image Resolution: Zoomable illustrations for clarity Binding Type Binding: Not Applicable (Digital Download) Paper Type Paper: Not Applicable (Digital Download) Storage User Storage: User responsible for saving downloaded file (no lifetime storage provided) ⚙️ Engine Specifications Primary Engine Engine Type: 4-Stroke, SOHC, Air-Cooled Displacement: 249 cc (Cubic Centimeters) Bore X Stroke: 72.0 mm x 60.0 mm (approximate, refer to manual for exact specs) Compression Ratio: 9.2:1 (typical for this class, refer to manual for exact specs) Performance Horsepower: Refer to manual for specific output (typically 14-17 HP) Torque: Refer to manual for specific output Fuel System Carburetor Type: Mikuni VM Series (specific model to be detailed in manual) Fuel Type: Unleaded Gasoline (Minimum Octane Rating to be specified in manual) Ignition Timing Timing Specification: Refer to manual for precise timing marks and procedure (e.g., BTDC) 🔧 Transmission Standard Type: Automatic (Continuously Variable Transmission - CVT) with Ultramatic® System Drive System: 2WD/4WD (selectable, likely electronic engagement) Features Gear Reduction: High/Low range (expected for utility ATV) Final Drive: Shaft Drive with Sealed Bevel Gear Fluid Specifications Cvt Fluid Type: Yamaha CVT Fluid or equivalent (refer to manual for specific Yamaha part number and type) 📐 Dimensions Exterior Length: Approx. 1830 mm (72.0 in) Width: Approx. 1065 mm (41.9 in) Height: Approx. 1140 mm (44.9 in) Weights Dry Weight: Approx. 252 kg (556 lbs) Curb Weight: Refer to manual for exact specification Towing Capacity: Refer to manual for specification (typically limited for this class) Payload Capacity: Refer to manual for specification (rack capacity) 🛡️ Safety Features Ratings Atv Safety Standards: Compliance with ANSI/SVIA standards is typical for this era and type of vehicle. Active Features Braking System: Hydraulic Disc Brakes with Parking Brake Lighting: Halogen Headlights, Taillight/Brake Light Passive Features Rollover Protection: None (inherent to ATV design; emphasis on rider skill and safe operation) 💡 Technology Features Infotainment Features: Basic Analog Gauges (Speedometer, Odometer, Fuel Gauge, Indicator Lights) Driver Assistance Features: Selectable 2WD/4WD Connectivity Features: None 🔧 Maintenance Service...