The Yamaha YFZ350 Banshee is a legendary high-performance sport All-Terrain Vehicle, produced from 1987 through 2003, with a notable legacy in racing and recreational riding. Renowned for its potent liquid-cooled, 347cc two-stroke twin-cylinder engine, the Banshee delivers exceptional power and agility, establishing itself as a dominant force against contemporaries like the Suzuki LT250R and Honda TRX250R. Its engineering prioritizes raw performance, featuring a robust frame, responsive suspension, and powerful hydraulic disc brakes, all contributing to its iconic status among enthusiasts seeking an exhilarating off-road experience. This comprehensive workshop service repair manual in English provides essential information for owners and technicians to maintain and repair the Yamaha YFZ350 Banshee models from 1987 to 2003. It covers a wide array of critical systems, including detailed engine rebuild procedures for the top and bottom end, transmission and clutch maintenance, suspension and brake system servicing, and electrical diagnostics with wiring diagrams. The manual also includes routine maintenance schedules, troubleshooting guides for common issues, and precise technical specifications such as torque values and fluid capacities, ensuring optimal performance and longevity of this iconic ATV. 🏷️ Basic Information Identification Make: Yamaha Model: YFZ350 Banshee Codes Chassis Code: Banshee (specific chassis codes vary by year and region, manual would detail these) Engine Code: 350cc Two-Stroke Twin (specific engine codes vary by year, manual would detail these) 👋 Introduction Market Position Segment: High-performance sport ATV (All-Terrain Vehicle) Target Audience: Enthusiasts, racers, and owners seeking to maintain and repair their YFZ350 Banshee. Competitive Analysis Key Rivals Era: Suzuki LT250R, Honda TRX250R, Kawasaki Tecate-4 Key Features Legendary Status: The YFZ350 Banshee is renowned for its powerful two-stroke engine, exceptional performance, and long production run. Manual Value Proposition: Provides essential knowledge for owners to keep this iconic performance machine running optimally, reducing reliance on expensive dealer service. 📋 Manual Details Coverage Areas Applicable Years: 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Page Count Estimated Pages: Varies by edition, typically 300-500+ pages for comprehensive coverage Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Top-end rebuild, bottom-end rebuild, cooling system, lubrication, tuning, carburetor adjustment, ignition system, exhaust system Transmission: Clutch, gearbox (shifting mechanism, gears, bearings), final drive (chain and sprockets) Suspension: Front suspension (forks, springs, damping), rear suspension (swingarm, shock absorber, linkage, bearings) Brakes: Front and rear hydraulic disc brake systems, master cylinders, calipers, brake lines, bleeding procedures Electrical: Wiring diagrams, lighting system, ignition system, battery, starter motor, charging system, fuses, switches Chassis And Bodywork: Frame, handlebars, steering system, wheels, tires, body panels, seat, footpegs, fuel tank, fenders Procedures Included Routine Maintenance: Oil changes (2-stroke premix), chain lubrication and adjustment, air filter cleaning/replacement, spark plug inspection/replacement, brake fluid checks Repair Procedures: Engine disassembly and reassembly, transmission overhaul, suspension component replacement, brake caliper rebuild, carburetor cleaning and tuning, electrical component diagnosis and replacement Troubleshooting: Diagnostic charts for common starting issues, running problems, electrical faults, and performance issues Specifications And Data: Torque specifications, clearances, fluid capacities, jetting recommendations, electrical resistance values Technical Depth Depth: Comprehensive from basic user maintenance to full engine and drivetrain rebuilds, including electrical system diagnosis. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Text-searchable, allowing for quick location of specific information Print Quality Print Readability: Designed for clear viewing on screen and print, often includes high-resolution diagrams and photos Binding Type Binding: N/A (Digital Download - PDF) Paper Type Paper Quality: N/A (Digital Download - PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, 2-cylinder, reed valve inducted Displacement: 347cc Bore X Stroke: 64.0 mm x 54.0 mm Compression Ratio: 6.6:1 (varies slightly by year) Ignition: CDI (Capacitor Discharge Ignition) Performance Horsepower Estimate: Approximately 45-50 HP (stock, varies by year and tuning) Torque Estimate: Approximately 30-35 lb-ft (stock, varies by year and tuning) Fuel System Carburetors: Dual Mikuni VM26SS (or similar depending on year) Fuel Type: Unleaded gasoline (octane rating specified in manual, typically 91+) Fuel Mixture: Pre-mix (50:1 or 100:1 ratio of 2-stroke oil to gasoline, specified in manual) 🔧 Transmission Standard Type: 6-speed manual, constant mesh Clutch: Wet, multiple disc, cable-operated Features Reverse: Included (on most models) Final Drive: O-ring sealed chain drive 📐 Dimensions Exterior Length Estimate: Approximately 70-73 inches Width Estimate: Approximately 46-49 inches Height Estimate: Approximately 42-44 inches Weights Dry Weight Estimate: Approximately 360-380 lbs Fuel Capacity: Approximately 2.5 - 3.0 gallons 🛡️ Safety Features Ratings Atv Safety Considerations: ATVs are specialized vehicles; proper training, protective gear, and adherence to safe riding practices are paramount. Manual will cover safety warnings and precautions. Active Features Braking System: Hydraulic disc brakes front and rear for strong stopping power. Passive Features Chassis Design: Sturdy frame providing a stable platform. 💡 Technology Features Infotainment Features: Basic instrumentation (speedometer, odometer, warning lights). No advanced...