🏷️ Basic Information Identification Make: Yamaha Model: YFM250BT Bruin Model Variant: 250cc Automatic Year: 2005 Codes Vin Prefix: JY Engine Code: N/A (Integrated) Model Code: YFM250BT 👋 Introduction Market Position Segment: Entry-level to Mid-range Utility ATV Competitive Analysis Competitors: Honda Rancher 250, Suzuki Eiger 400 (lower displacement variants), Kawasaki Bayou 250 Key Features Features: Compact size, user-friendly operation, reliable Yamaha engine, suitable for recreational trail riding and light utility work. 📋 Manual Details Coverage Areas Coverage: Owner's Manual Specific Chapters: Safety, Machine ID, Controls, Pre-Op, Operation, Riding, Maintenance, Cleaning/Storage, Specs Page Count Pages: 174 Manual Type Type: Owner's Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems: Safety Information, Machine Identification, Control Functions, Pre-operation Checks, Operation, Riding Techniques, Periodic Maintenance, Cleaning, Storage, Specifications Procedures Included Procedures: Basic operation, safety precautions, pre-ride checks, regular maintenance, cleaning and storage procedures, identification of controls and components. Technical Depth Depth: Owner-level, focusing on safe operation, basic maintenance, and component identification. 📊 Manual Specifications File Format Format: PDF Viewable With: Adobe Reader Print Quality Printability: Printable Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Type: Air-cooled, 4-stroke, SOHC, 2-valve Displacement: 249 cc Bore X Stroke: 74.0 mm x 57.9 mm Compression Ratio: 10.2:1 Performance Horsepower: Approx. 16.5 HP @ 7000 RPM (Estimated) Torque: Approx. 13.3 lb-ft @ 5500 RPM (Estimated) Fuel System Carburetor: Teikei Y24P, Mikuni VM26 (likely) Fuel Type: Unleaded gasoline, 87 octane or higher Fuel Tank Capacity: 3.2 US gal (12 L) Ignition System: CDI (Capacitor Discharge Ignition) Starting System: Electric Start 🔧 Transmission Standard Type: Automatic (V-belt type) Drive: 2WD (Rear Wheel Drive) Features Gear Selection: Forward, Neutral, Reverse Final Drive: Sealed O-ring chain 📐 Dimensions Exterior Length: 74.4 in (1890 mm) Width: 41.3 in (1050 mm) Height: 42.1 in (1070 mm) Wheelbase: 49.2 in (1250 mm) Ground Clearance: 5.9 in (150 mm) Weights Dry Weight: 538 lbs (244 kg) Curb Weight: N/A (Typically higher than dry weight) Cargo Front Rack Capacity: 20 kg (44 lbs) Rear Rack Capacity: 40 kg (88 lbs) Wheels Tires Front Tire Size: AT22x8-10 Rear Tire Size: AT22x10-10 🛡️ Safety Features Ratings Atv Safety: ATVs are not motorcycles. For off-road use only. Always wear a helmet and protective gear. Active Features Features: Handlebar guards, throttle limiter (thumb screw adjustment), engine braking through CVT. Passive Features Features: Integrated body panels, handlebar grips, footwells with heel guards. Warnings General Warnings: Refer to manual for specific warnings regarding operation, maintenance, and environmental factors. 💡 Technology Features Infotainment Features: N/A (Basic utility ATV) Driver Assistance Features: N/A (Basic utility ATV) Connectivity Features: N/A (Basic utility ATV) 🔧 Maintenance Service Intervals Oil Change: Every 1000 km or 6 months (refer to manual for exact recommendations and usage conditions). Air Filter: Clean every 500 km or 3 months, replace as needed. Spark Plug: Inspect every 1000 km, replace as needed. Valve Clearance: Check every 2000 km or 1 year (requires specialized tools and knowledge). Cv Belt Inspection: Inspect every 1000 km or 6 months. Replace if worn or damaged. Fluid Specifications Engine Oil: Yamalube 4 (or equivalent) SAE 20W-40 API SE, SF or SG type. Capacity: 1.8 L (1.9 US qt) without filter change, 1.9 L (2.0 US qt) with filter change. Gear Oil: Yamalube Gear Oil 80W SAE 80 API GL-4. Capacity: 0.13 L (0.14 US qt) Brake Fluid: DOT 3 or DOT 4 Coolant: N/A (Air-cooled engine) Brake System Type: Hydraulic disc brakes (front and rear) Known Issues Common Problems: Carburetor gumming if not used regularly, potential wear in the CVT belt, occasional starter motor issues if not maintained. Tools Required Tools: Basic hand tools (wrenches, sockets), torque wrench, feeler gauges (for valve adjustment), specialized Yamaha tools (if specified in manual). 📚 Vehicle History Brand Heritage Heritage: Yamaha has a long-standing reputation for producing reliable and durable powersports vehicles, including a wide range of ATVs. Model Evolution Evolution: The Bruin line was positioned as an accessible and user-friendly ATV, building on Yamaha's experience with models like the Timberwolf and Wolverine. The 250cc engine provided a balance of performance and ease of use for recreational riders. Production Production Years: 2004-2007 (for the 250cc model) Manufacturing Location: Japan (Primary) 🏆 Awards & Recognition Recognitions Awards: N/A (No specific industry awards documented for this model) Ratings Customer Satisfaction: Generally positive for reliability and ease of use within its class.