Segment:
Entry-level/Mid-range recreational ATV
Target User:
Recreational riders, utility users, and those seeking a dependable shaft-driven ATV
Competitors Era:
Competed with models from Honda (e.g., TRX series), Suzuki (e.g., LT series), Kawasaki (e.g., Bayou series) during the mid-to-late 1980s
Drivetrain:
Shaft drive system offering reduced maintenance compared to chain drives
Transmission Feature:
Reverse gear for enhanced maneuverability and utility
Engine Type:
Air-cooled, single-cylinder engine known for simplicity and reliability
Yamaha Atv Legacy:
Yamaha has a long history of producing durable and capable ATVs, with the Moto 4 line being a significant early entry
Moto 4 Series:
The YFM 200 Moto 4 was part of a successful series that also included other displacements and configurations
Engine:
Complete engine overhaul, disassembly, assembly, tuning, and troubleshooting
General Information:
Vehicle identification, safety precautions, general maintenance tips
Transmission:
Shaft drive system, gearbox, reverse mechanism, lubrication, and repair
Chassis:
Frame construction, bodywork, mounting points, and general chassis integrity
Lightning:
Lighting system (headlight, taillight, brake light), bulb specifications, wiring diagrams
Steering:
Steering mechanism, tie rods, handlebars, bearing maintenance, and alignment
Seats System:
Seat mounting, removal, and any seat-related components
Clutch:
Clutch operation, adjustment, and component inspection (if applicable to shaft drive system)
Suspension:
Front and rear suspension, shock absorbers, springs, adjustment, and overhaul
Locks:
Ignition switch, steering lock, and any other locking mechanisms
Brakes:
Brake system components (drums, levers, cables), adjustment, and maintenance
Lubrication:
Lubrication points, fluid types, capacities, and recommended change intervals
Electrical:
Wiring diagrams, battery, starter, ignition system, lighting, fuses, and troubleshooting electrical faults
Frame:
Structural integrity, frame inspection, and repair procedures
Fuel System:
Fuel tank, fuel lines, carburetor (model specific), fuel filter, and troubleshooting fuel delivery issues
Battery:
Battery specifications, charging, maintenance, and testing
Maintenance:
Routine scheduled maintenance, periodic checks, and preventative care
Troubleshooting:
Diagnostic procedures for common and uncommon problems, symptom-based troubleshooting guides
Repair:
Step-by-step instructions for component repair and replacement
Restoration:
Guidance for restoring the ATV to its original condition
Rebuild:
Detailed procedures for rebuilding major components like the engine and transmission
Diagnostics:
Methods for diagnosing mechanical and electrical faults
Exhaust System:
Inspection, maintenance, and repair of the exhaust system and muffler.
Cooling System Maintenance:
Inspection and maintenance of air-cooling fins and related components.
Wheel Bearing Service:
Inspection, lubrication, and replacement of wheel bearings.
Cable Adjustments:
Adjustment and replacement of throttle, brake, and clutch cables.
Body Panel Removal:
Instructions for removing and reinstalling plastic body panels and fenders.
Depth Level:
Comprehensive, professional-level repair and maintenance information
Illustrations:
Clear, step-by-step illustrated instructions
Diagrams:
Inclusion of wiring diagrams and exploded views
Target Audience:
Professional technicians, mechanics, DIY enthusiasts
Engine Manufacturer:
Yamaha
Engine Type:
Four-stroke, Air-cooled, SOHC
Displacement:
196 cc (approximately)
Bore X Stroke:
Refer to manual for exact specifications
Compression Ratio:
Refer to manual for exact specifications
Horsepower:
Estimated 12-15 HP (typical for class and era, specific figures in manual)
Torque:
Refer to manual for exact specifications
Carburetor Type:
Mikuni (likely VM series, specific model in manual)
Fuel Type:
Unleaded Gasoline
Fuel Tank Capacity:
Refer to manual for exact specifications (typically 2-3 gallons)
Ignition System:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Air-cooled
Overall Length:
Refer to manual for exact specifications
Overall Width:
Refer to manual for exact specifications
Overall Height:
Refer to manual for exact specifications
Dry Weight:
Refer to manual for exact specifications (typically 300-350 lbs)
Curb Weight:
Refer to manual for exact specifications
Front Tire Size:
Refer to manual for exact specifications (e.g., AT19x7-8)
Rear Tire Size:
Refer to manual for exact specifications (e.g., AT19x10-9)
Front Suspension Travel:
Refer to manual for exact specifications
Rear Suspension Travel:
Refer to manual for exact specifications
Oil Change Engine:
Refer to manual for recommended intervals (typically every 1000-2000 miles or annually)
Air Filter Cleaning:
Refer to manual for recommended intervals (frequent checks in dusty conditions)
Spark Plug Replacement:
Refer to manual for recommended intervals
Valve Adjustment:
Refer to manual for recommended intervals (e.g., every 2000-4000 miles)
Engine Oil Type:
Refer to manual for specific API service classification and viscosity (e.g., Yamalube 4 or equivalent)
Engine Oil Capacity:
Refer to manual for exact capacity (typically 1.5-2 liters)
Brake Fluid:
DOT 3 or DOT 4 (refer to manual for specific type)
Coolant:
Not Applicable (Air-cooled engine)
Common Wear Items:
Brake cables, suspension bushings, carburetor cleaning due to age, drive shaft U-joints (if applicable)
Electrical Faults:
Corrosion on electrical connectors, aging wiring harnesses
Carburetor Performance:
Gumming and blockages from fuel degradation over time, requiring regular cleaning and adjustment.
