🏷️ Basic Information Identification Make: Yamaha Model: YFM200 Moto 4 Model Variant: Shaft Reverse Model Years Covered: 1985, 1986, 1987, 1988 Codes Vin Decoder Prefix: JY 👋 Introduction Market Position Vehicle Segment: Entry-level to mid-range utility ATV Target Audience: Recreational riders, utility users, novice to experienced ATV enthusiasts Competitive Analysis Competitors: Honda TRX250, Suzuki LT250, Kawasaki Bayou 220 Key Features Unique Selling Points: Shaft drive for low maintenance, reverse gear for enhanced maneuverability, durable and reliable Yamaha engineering Manual Value Proposition Benefits: Provides dealership-level repair and maintenance information, allows for cost-effective DIY servicing, instant access 📋 Manual Details Coverage Areas Manual Type: Service Repair Workshop Manual Language: English Format: PDF Digital Enhancements: Index and Bookmarks Page Count Estimated Page Count: Detailed (specific count not provided, but comprehensive) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, diagnostics, tuning, lubrication, cooling system Transmission: Shaft drive system, reverse gear, final drive, clutch operation Chassis: Frame, body panels, fenders, mounting hardware Steering: Handlebar assembly, steering column, tie rods, steering knuckle Suspension: Front suspension (A-arms, shocks, springs), rear suspension (swingarm, shock, springs), bushings Brakes: Front and rear brake systems, hydraulic lines, calipers, master cylinders, brake pads, rotor specifications Electrical: Wiring diagrams, ignition system, charging system (stator, regulator/rectifier), lighting system, battery, starter motor Fuel System: Carburetor (model and tuning), fuel lines, fuel tank, petcock Lubrication: Engine oil, transmission oil, chassis lubrication points, fluid types and capacities Wheels And Tires: Wheel specifications, tire pressure recommendations, tire types Seats And Locks: Seat removal and installation, lock mechanisms Procedures Included Maintenance: Routine checks, lubrication, filter replacement, spark plug service, carburetor cleaning and adjustment, brake bleeding Troubleshooting: Diagnostic procedures for common starting, running, and electrical issues; symptom-based troubleshooting guides Repair: Engine rebuild, transmission overhaul, suspension component replacement, brake system repair, electrical component diagnosis and replacement Disassembly And Assembly: Step-by-step instructions for component removal, reinstallation, and torquing specifications Engine Tuning: Carburetor jetting, timing adjustments, valve clearance checks Technical Depth Depth: Comprehensive (suitable for dealership technicians and experienced DIY mechanics) Detail Level: Includes detailed exploded diagrams, torque specifications, and precise measurements 📊 Manual Specifications File Format File Type: Adobe Acrobat PDF Searchability: Searchable text within PDF Print Quality Printability: Printable sections or entire manual Binding Type Binding Options: Printable for 3-ring binder or loose-leaf Paper Type Recommended Paper: Standard printer paper (user supplied) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, SOHC Displacement: 196 cc Bore X Stroke: 66.0 mm x 57.0 mm Compression Ratio: 9.0:1 Performance Horsepower: Approximately 16-18 hp (specific rating may vary by region and tuning) Torque: Approximately 11-12 lb-ft (specific rating may vary) Fuel System Carburetor Type: Mikuni VM24SS (typical) Fuel Tank Capacity: Approximately 2.6 US gal (9.8 L) Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) Cooling System Cooling Method: Air-cooled 🔧 Transmission Standard Transmission Type: Automatic (Torque Converter) with Shaft Drive Drive Modes: 2WD Features Reverse Gear: Yes Final Drive: Shaft Drive 📐 Dimensions Exterior Overall Length: Approximately 71.5 in (1815 mm) Overall Width: Approximately 41.1 in (1045 mm) Overall Height: Approximately 41.9 in (1065 mm) Weights Dry Weight: Approximately 350 lbs (159 kg) Curb Weight: Approximately 370 lbs (168 kg) (with fluids) Wheels And Tires Front Tire Size: AT22x7-10 (typical) Rear Tire Size: AT22x10-10 (typical) Wheelbase: Approximately 47.2 in (1200 mm) 🛡️ Safety Features Ratings Atv Safety Standards: Compliant with ANSI/SVIA standards for recreational ATVs Active Features Braking System: Hydraulic disc brakes front, Drum brake rear (typical) Passive Features Lighting: Headlights, taillight/brake light Handlebars: Ergonomic design with padding 💡 Technology Features Infotainment Features: Basic instrumentation (speedometer, odometer, neutral indicator, oil light). Driver Assistance Features: No advanced driver-assistance systems; focus is on mechanical reliability and simplicity. 🔧 Maintenance Service Intervals Engine Oil Change: Every 600 miles or 6 months (refer to manual for exact recommendations) Air Filter Cleaning: Every 300 miles or 3 months (more frequently in dusty conditions) Spark Plug Replacement: Every 1,200 miles or annually Gear Oil Change: Annually or every 1,200 miles Fluid Specifications Engine Oil Type: SAE 10W-30 API SG or higher (check manual for precise specification) Engine Oil Capacity: Approximately 1.6 US qt (1.5 L) with filter change Final Drive Oil Type: Yamalube Gear Oil or equivalent SAE 80 API GL-4 (check manual) Final Drive Oil Capacity: Approximately 0.2 US qt (0.2 L) Known Issues Common Problems: Carburetor gumming due to fuel sitting, stator failure, starter motor issues, worn suspension bushings, drive shaft U-joint wear. Preventative Maintenance Recommendations: Regular cleaning of the carburetor bowl, proper fuel stabilizer use, consistent lubrication of chassis components. 📚 Vehicle History Brand Heritage Yamaha Atv Legacy: Yamaha has a long history of producing reliable and innovative ATVs, starting with the groundbreaking 'Tri-Z' series. Model Evolution Moto 4 Line: The Moto 4 line was Yamaha's entry into the utility ATV market, known for its reliability and practicality. Yfm200 Positioning: The YFM200 was positioned as an accessible and...