🏷️ Basic Information Identification Make: Yamaha Model: Bruin 250 Model Code: YFM25BV Vehicle Type: ATV (All-Terrain Vehicle) Generation Generation Designation: First Generation 👋 Introduction Market Position Target Audience: Owners of the Yamaha Bruin 250 YFM25BV seeking comprehensive information for operation, maintenance, and basic repairs. Key Features Documentation Type: Official factory documentation, ensuring accuracy and completeness. Accessibility: Instant PDF download provides immediate access without shipping delays. 📋 Manual Details Coverage Areas Covered Sections: Engine, Transmission, Drivetrain, Suspension, Brakes, Steering, Electrical System, Fuel System, Cooling System, Frame, Bodywork, Maintenance, Troubleshooting, Specifications, Index Page Count Estimated Page Count: 300-500 pages (estimated based on typical comprehensive Yamaha ATV manuals) Manual Type Type: Official Owner's / User Manual Language Language: English Format Delivery Format: PDF Download 📖 Manual Coverage Systems Covered Engine System: Detailed component identification, operation, maintenance, and troubleshooting for the 250cc air-cooled engine. Transmission Drivetrain: Coverage of the automatic transmission, drive shafts, differentials, and chain drive systems. Suspension Steering: Information on front and rear suspension components, shock absorbers, linkage, and steering system maintenance and adjustments. Braking System: Details on hydraulic brake systems, caliper maintenance, pad replacement, fluid specifications, and bleeding procedures. Electrical System: Wiring diagrams, battery maintenance, lighting systems, ignition system, starter motor, and charging system troubleshooting. Fuel System: Carburetor identification, adjustment, cleaning, fuel tank, fuel lines, and filter maintenance. Procedures Included Routine Maintenance: Oil change procedures, filter replacement, spark plug checks, air filter cleaning/replacement, lubrication points, and tire pressure checks. Troubleshooting: Diagnostic flowcharts and common problem resolution for starting issues, engine performance, electrical faults, and braking concerns. Component Overhaul: Detailed procedures for engine disassembly, carburetor rebuild, brake caliper service, and transmission inspection. Technical Depth Diagnostic Capabilities: Comprehensive diagnostic information, including symptom-based troubleshooting and component testing procedures. Repair Scope: Covers everything from basic user maintenance to in-depth mechanical repairs and component replacement. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable due to being an official PDF Print Quality Quality Level: Factory Quality Image Resolution: High-resolution, suitable for clear viewing and printing Printability Printable: Yes Zoom Functionality Zoomable: Yes ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, air-cooled Displacement: 245 cc (Cubic Centimeters) Bore X Stroke: 72.0 mm x 60.0 mm (typical for this engine) Compression Ratio: Approximately 9.2:1 (typical) Performance Horsepower: Not explicitly stated in product info, but typically in the 15-20 HP range. Torque: Not explicitly stated in product info, but a respectable mid-range torque output for its class. Fuel System Fuel Delivery: Teikei Y26PV carburetor Fuel Type: Unleaded gasoline, 87 octane or higher recommended. Ignition Ignition System: CDI (Capacitor Discharge Ignition) Starting System Starter: Electric starter with manual recoil backup (typical) 🔧 Transmission Standard Transmission Type: Automatic (CVT - Continuously Variable Transmission) Drive System: 2WD or 4WD selectable (depending on specific YFM25BV variant, manual will cover the applicable system) Features Gear Selection: Forward (Hi/Lo), Neutral, Reverse Clutch: Automatic centrifugal clutch 📐 Dimensions Exterior Length: Approx. 1835 mm (72.2 in) Width: Approx. 1065 mm (41.9 in) Height: Approx. 1130 mm (44.5 in) Weights Dry Weight: Approx. 250 kg (551 lbs) Fuel Tank Capacity: Approx. 11.0 L (2.9 gal) Wheels Tires Front Tire Size: AT22x7-10 (typical) Rear Tire Size: AT22x10-10 (typical) 🛡️ Safety Features Ratings Atv Safety Standards: Designed to meet ANSI/SVIA standards for ATVs. Active Features Braking System Type: Hydraulic disc brakes front and rear. Passive Features Throttle Limiter: Potential presence of a throttle limiter screw for younger or less experienced riders, covered in the manual. Operation Recommended Gear: Always wear a helmet, eye protection, and appropriate clothing. Read manual before operating. 💡 Technology Features Infotainment Instrumentation: Basic LCD display including speedometer, odometer, trip meter, and indicator lights (e.g., neutral, reverse, 2WD/4WD). Driver Assistance No Electronic Aids: As a utility ATV of its era, it typically lacks advanced electronic driver aids like ABS or traction control. 🔧 Maintenance Service Intervals Engine Oil Change: Every 100 hours or annually (refer to manual for precise intervals and conditions). Air Filter Inspection: Inspect every 20 hours, clean or replace as needed. More frequent cleaning in dusty conditions. Spark Plug Check: Inspect and gap every 100 hours or annually. Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent) SAE 10W-30 API SG or higher, SJ, or SL. Engine Oil Capacity: Approx. 1.80 L (1.90 US qt) without filter change, 1.90 L (2.01 US qt) with filter change (verify in manual). Brake Fluid Type: DOT 3 or DOT 4 hydraulic brake fluid. Known Issues Common Wear Items: Brake pads, air filter, spark plugs, and drive belt (CVT) are common wear items requiring periodic replacement. Carburetor Cleaning: Carburetors can become clogged with debris or varnish if the ATV sits for extended periods, requiring cleaning. Cvt Maintenance: Proper CVT belt maintenance and clutch inspection are crucial for optimal performance and longevity. 📚 Vehicle History Brand Heritage Yamaha Atv Legacy: Yamaha has a long-standing history and...