Vehicle Segment:
Sport ATV / All-Terrain Vehicle
Target Demographic:
Recreational riders, utility users, entry-level ATV enthusiasts.
Key Competitors Era:
Early to mid-1980s sport ATVs from manufacturers like Honda (e.g., TRX200), Kawasaki (e.g., KLT200), Suzuki (e.g., ALT250), and possibly early Yamaha models like the YFM250R.
Engine Configuration:
Single-cylinder, air-cooled, two-stroke (common for this era, though 200cc can sometimes be 4-stroke, YFM200N is typically 2-stroke) or four-stroke.
Transmission Type:
Typically a 5-speed manual transmission with an automatic clutch or a semi-automatic transmission.
Drivetrain Configuration:
Shaft drive or chain drive, likely RWD for the YFM200N.
Manual Type:
Workshop Service Repair Manual
Manual Scope:
Complete Factory Official Service Manual
Intended Audience:
Yamaha Technicians, Professional Mechanics, DIY Enthusiasts
Estimated Page Count:
Hundreds of pages (actual count not specified, but indicative of comprehensive content)
Language:
English (Assumed for North American market product description)
Download Format:
PDF Download
Printability:
Printable in its entirety
Engine:
Comprehensive coverage of engine disassembly, assembly, inspection, adjustment, and troubleshooting.
Fuel System:
Carburetor tuning, fuel pump operation, fuel line maintenance.
Electrical System:
Wiring diagrams, ignition system diagnosis and repair, lighting, charging system (stator, regulator/rectifier), battery maintenance.
Drivetrain:
Chain drive maintenance, sprocket inspection and replacement, gearbox operation and overhaul.
Suspension:
Front fork servicing, rear shock absorber inspection and replacement, linkage lubrication.
Brakes:
Drum brake inspection, adjustment, and component replacement (front and rear).
Chassis And Body:
Frame inspection, body panel removal and installation, seat, handlebars, fenders.
Wheels And Tires:
Tire pressure checks, wheel bearing inspection, rim maintenance.
Maintenance Procedures:
Oil changes, filter replacements, chain lubrication and adjustment, spark plug replacement, air filter cleaning/replacement, valve clearance checks.
Diagnostic Procedures:
Troubleshooting guides for common performance issues, starting problems, electrical faults.
Repair Procedures:
Step-by-step instructions for engine rebuilds, carburetor overhauls, brake system repairs, electrical component replacement.
Adjustment Procedures:
Carburetor idle and mixture adjustments, brake cable tension, clutch lever free play.
Depth Of Information:
Comprehensive factory-level detail, suitable for complete mechanical overhauls and advanced diagnostics.
Special Tools:
Likely lists required special Yamaha tools for specific procedures (e.g., flywheel puller, bearing drivers).
Torque Specifications:
Detailed torque values for critical fasteners throughout the vehicle.
Clearances And Tolerances:
Precise specifications for engine component clearances (e.g., piston ring gap, valve stem clearance).
Engine Type:
Air-cooled, 4-stroke, SOHC
Bore X Stroke:
66.0 mm x 57.0 mm
Carburetor Model:
Mikuni VM26SS (example, specific variant may differ)
Horsepower:
Approximately 15-18 HP (estimated, actual figures vary by tuning and year)
Torque:
Approximately 12-14 lb-ft (estimated)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
Approximately 2.6 US gallons (9.8 L)
Ignition Type:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Air cooling
Overall Length:
Approximately 71.5 inches (1815 mm)
Overall Width:
Approximately 40.0 inches (1015 mm)
Overall Height:
Approximately 43.1 inches (1095 mm)
Dry Weight:
Approximately 357 lbs (162 kg)
Curb Weight:
Not explicitly provided, but typically around 380-400 lbs with fluids.
Ground Clearance:
Approximately 6.3 inches (160 mm)
Front Tire Size:
AT22 x 8-10 (common for the era)
Rear Tire Size:
AT22 x 10-10 (common for the era)
Front Wheel Type:
Steel, 10-inch diameter
Rear Wheel Type:
Steel, 10-inch diameter
Atv Safety Standards:
Adheres to industry standards for ATVs of its time; modern safety features not applicable.
Braking System:
Front and rear drum brakes.
Throttle Limiter:
Likely equipped with a throttle limiter screw for beginner control.
Lighting:
Single halogen headlight, dual taillight/stoplight.
Operator Control:
Handlebar controls with clutch lever, throttle, and brake levers.
Infotainment Systems:
N/A (This is a 1980s utility/recreational ATV with no electronic infotainment systems).
Driver Assistance Features:
N/A (No electronic driver assistance features).
Connectivity Options:
N/A (No electronic connectivity features).
Engine Oil Change:
Every 600 miles or 6 months (typical for the era).
Air Filter Cleaning:
Every 600 miles or annually, depending on operating conditions.
Spark Plug Replacement:
Every 1,800 miles or 18 months (typical).
Valve Clearance Check:
Every 1,800 miles or 18 months (typical).
Chain Lubrication Adjustment:
Every 300 miles or monthly, and adjust as needed.
Engine Oil Type:
Yamalube 4 (or equivalent API SE, SF, SG service classification, SAE 10W-40 or 20W-40 recommended depending on temperature).
Engine Oil Capacity:
Approximately 1.8 L (1.9 US qt) for oil change, 2.1 L (2.2 US qt) for oil filter change.
Gear Oil Type:
Yamalube Hypoid Gear Oil (or equivalent SAE 80W-90 API GL-4).
Gear Oil Capacity:
Approximately 100 ml (0.1 US qt) for final drive.
Common Wear Items:
Chain and sprockets, brake shoes, wheel bearings, swingarm bushings, carburetor jets due to fuel degradation, CDI unit (can be prone to failure with age).
Engine Performance Degradation:
Carbon buildup in exhaust and piston rings, carburetor jet clogging, weak ignition spark.
Electrical Issues:
Corroded connections, aging wiring harness, stator output degradation.
Trouble Areas Covered:
Starting issues, poor acceleration, engine misfires, electrical faults, braking problems.
Yamaha Atv Legacy:
Yamaha has a long and successful history in ATV manufacturing, starting with the groundbreaking 'Three Wheelers' and transitioning to popular 'Four Wheelers' like the Moto-4 and later Warrior and Raptor models.
Moto-4 Lineage:
The YFM200N Moto-4 was part of Yamaha's early entry into the 4-wheel ATV market, establishing a platform for more performance-oriented and utility-focused models that followed.
Predecessors And Successors:
Evolved from Yamaha's 3-wheelers and paved the way for the YFM225, YFM250, and the sportier YFM250R.
Manufacturing Location:
Likely manufactured in Japan or at Yamaha's overseas facilities at the time.
Market Impact:
Contributed to Yamaha's growing market share in the emerging ATV segment, offering a balance of utility and recreational capability.
Industry Awards:
Specific awards for the YFM200N are unlikely to be widely documented, but it was a significant model in Yamaha's ATV lineup during its production years.
Consumer Ratings:
Generally considered a reliable and capable utility ATV for its class and era.
Safety Certifications:
Met all relevant safety certifications for ATVs in its production markets.
