🏷️ Basic Information Identification Make: Yamaha Model: Timberwolf 4WD Model Code: YFB250FWK Year: 1998 Codes Vin Prefix: JY 👋 Introduction Market Position Product Category: Aftermarket ATV Parts Manual Target Audience: Yamaha Timberwolf owners, ATV mechanics, parts suppliers, restoration enthusiasts Key Features Primary Benefit: Facilitates accurate part identification and ordering for maintenance and repair Download Advantage: Instant digital download provides immediate access, eliminating shipping costs and wait times Diagram Utility: Exploded diagrams are crucial for visual understanding of component relationships and assembly order Quality Assurance Quality Description: Professional Quality, Manufacturer Part Numbers and Diagrams 📋 Manual Details Coverage Areas Manual Type: Parts Manual Catalog Coverage Scope: Complete Parts Breakdown for 1998 Yamaha Timberwolf 4WD (YFB250FWK) Page Count Estimated Page Count: Extensive (Specific page count not provided, but implied to be comprehensive) Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Components: Cylinder, Piston, Crankshaft, Valves, Camshaft, Carburetor, Ignition System, Cooling System, Exhaust System Drivetrain Components: Transmission, Clutch, Driveshafts, Axles, Differential, 4WD System Components, Final Drive Chassis Components: Frame, Suspension (Front & Rear), Steering System, Wheels, Tires Braking Components: Brake Calipers, Brake Discs, Brake Lines, Master Cylinder, Brake Pedals Electrical Components: Wiring Harnesses, Lighting (Headlight, Taillight, Indicators), Battery, Starter Motor, Alternator, Switches Body Components: Body Panels, Fenders, Seats, Handlebars, Footpegs, Racks Procedures Included Assembly Disassembly: Detailed exploded diagrams for component identification and aid in assembly/disassembly Part Identification: Identification of every part with manufacturer part numbers Technical Depth Technical Depth: Component-level parts identification and referencing, ideal for replacement and ordering 📊 Manual Specifications File Format File Format Details: Portable Document Format (PDF) compatible with PC & MAC, all Windows versions Print Quality Printability: Printable - allows users to print specific pages or the entire manual Binding Type Binding Type: Digital Download (Not physically bound) Paper Type Paper Type: Not Applicable (Digital Format) Digital Features View Enlargement: Supports high-resolution image viewing, allowing enlargement of small parts in diagrams Searchability: Likely searchable based on PDF format and professional quality ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke Engine Displacement: 230cc (approximate) Engine Configuration: Single Cylinder Performance Cooling System: Air-cooled Fuel System Fuel Delivery: Carburetor (likely Mikuni VM Series) Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) 🔧 Transmission Standard Transmission Type: Automatic (CVT - Continuously Variable Transmission) Gear Selection: Forward, Neutral, Reverse Features Drive System: 4WD (Four-Wheel Drive) Final Drive: Shaft Drive 📐 Dimensions Exterior Length: Approximately 1,990 mm (78.3 in) Width: Approximately 1,080 mm (42.5 in) Height: Approximately 1,035 mm (40.7 in) Weights Dry Weight: Approximately 208 kg (459 lbs) Ground Clearance: Approximately 190 mm (7.5 in) Dimensions Wheelbase: Approximately 1,205 mm (47.4 in) Tire Size Front: AT22x8-10 Tire Size Rear: AT22x10-10 🛡️ Safety Features Ratings Safety Standards: N/A (ATV - Not subject to automotive crash safety standards) Active Features Braking System: Hydraulic Disc Brakes (Front and Rear) Parking Brake: Mechanical Parking Brake Passive Features Lighting: Dual Halogen Headlights, Taillight, Stoplight 💡 Technology Features Infotainment Infotainment System: None (Basic Utility ATV) Driver Assistance Driver Assistance Features: None Connectivity Connectivity Options: None 🔧 Maintenance Service Intervals Oil Change Interval: Refer to dedicated service manual or owner's manual; typically every 1,000 km or annually. Air Filter Cleaning: Frequent checks recommended, especially in dusty conditions; typically every 500-1000 km or as needed. Fluid Specifications Engine Oil Type: Yamaha recommends Yamalube 4 (10W-40 or 20W-50 depending on climate) or equivalent API SG or higher. Engine Oil Capacity: Approximately 1.7 Liters (1.8 US Qt) without filter change, 1.8 Liters (1.9 US Qt) with filter change. Gear Oil Type: Yamalube Gear Oil (75W) or equivalent API GL-4. Brake Fluid Type: DOT 3 or DOT 4 Hydraulic Brake Fluid. Known Issues Common Wear Items: Brake pads, wheel bearings, CV joint boots, drive belts (CVT), carburetor jets. Carburetor Maintenance: Periodic cleaning and adjustment of the carburetor is common to maintain optimal performance, especially after periods of storage. 4Wd System Care: Regular inspection of the 4WD engagement mechanism and CV joints/boots is advised to prevent damage and ensure proper function. 📚 Vehicle History Brand Heritage Manufacturer Focus: Yamaha is a renowned manufacturer of motorcycles, ATVs, and powersports equipment known for reliability and innovation. Model Evolution Timberwolf Lineage: The Timberwolf was Yamaha's utility-focused ATV, designed for work and recreational trail riding, preceding models like the Kodiak. Production Production Period: 1990s (e.g., 1992-1998 for the 2WD/4WD variants) Manufacturing Location: Likely Japan or USA 🏆 Awards & Recognition Recognitions Industry Recognition: Yamaha ATVs are generally well-regarded for their durability and performance in their class.