Category:
All-Terrain Vehicle (ATV)
Target User:
DIY enthusiasts, Home mechanics, Professional Technicians, Workshops
Competitive Landscape:
Competed with other entry-level 200cc ATVs of its era from brands like Honda, Suzuki, and Kawasaki.
Highlight:
Designed as a utility and recreational ATV, offering a balance of performance and affordability.
Engine Type:
Air-cooled, single-cylinder, four-stroke engine.
Model Years Covered:
1985, 1986, 1987, 1988, 1989
Trim Levels Covered:
All variants including N-S and DX
Estimated Page Count:
Varies, potentially up to 5GB file size
Type:
Factory Service Manual / Repair Manual / Workshop Manual
Delivery Format:
Digital Download (PDF, ZIP, RAR, or EXE)
Engine Systems:
Engine Overhaul, Cooling System, Fuel Injection System, Carburetor (if applicable to specific sub-models), Lubrication System
Drivetrain Systems:
Drive Train, Transmission, Clutch, Final Drive, Suspension Components
Chassis Systems:
Chassis, Frame, Steering, Braking System (Front and Rear), Wheels, Tires
Electrical Systems:
Electrical System, Ignition System, Lighting System, Battery, Charging System, Wiring Diagrams
Maintenance:
Periodic Checks & Adjustments, Scheduled Maintenance, Lubrication Points
Repair:
Component Disassembly, Reassembly, Component Replacement, Rebuilding Procedures
Troubleshooting:
Problem Diagnosis, Symptom Analysis, Step-by-Step Troubleshooting Guides
Depth:
Comprehensive (from basic maintenance to complete engine rebuilds and diagnostics)
Diagnostics:
Advanced diagnostic procedures, troubleshooting flowcharts
Illustrations:
Illustrated with clear step-by-step instructions, exploded views, zoomable illustrations
Engine Type:
Four-stroke, SOHC, air-cooled
Displacement:
196 cc (approximate)
Bore X Stroke:
67.0 mm x 55.7 mm (typical for this engine family)
Compression Ratio:
9.0:1 (typical)
Horsepower:
Approximately 15-17 HP (estimated)
Torque:
Not readily available in standard documentation, but sufficient for its class.
Carburetor Type:
Mikuni VM Series (e.g., VM26SS or similar)
Fuel Capacity:
Approximately 2.7 US gallons (10.2 L)
Cooling Method:
Forced air cooling
Ignition Type:
CDI (Capacitor Discharge Ignition)
Overall Length:
Approximately 70.9 inches (1800 mm)
Overall Width:
Approximately 41.3 inches (1050 mm)
Overall Height:
Approximately 41.5 inches (1055 mm)
Dry Weight:
Approximately 357 lbs (162 kg)
Ground Clearance:
Approximately 4.3 inches (110 mm)
Wheelbase:
Approximately 45.3 inches (1150 mm)
Front Tire Size:
AT18 x 7-8 (common size)
Rear Tire Size:
AT20 x 10-9 (common size)
Safety Standards:
Designed to meet applicable ANSI/SVIA standards for recreational ATVs.
Braking System:
Drum brakes front and rear, parking brake.
Lighting:
Headlight, taillight, brake light.
Handlebars:
ATV-style handlebars with thumb throttle and hand brake levers.
Oil Change Interval:
Refer to manual, typically every 6 months or 1000 miles (for motorcycles, ATVs may vary; consult manual)
Air Filter Cleaning:
Regularly check and clean/replace as needed, especially in dusty conditions.
Spark Plug Replacement:
Refer to manual, typically every 3000-6000 miles or annually.
Engine Oil Type:
Yamalube or equivalent SAE 10W-40 API SG or higher motorcycle oil.
Engine Oil Capacity:
Approximately 1.7 US quarts (1.6 L) with filter change.
Gearbox Oil Type:
Yamalube Gear Oil or equivalent.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid.
Carburetor Issues:
Pilot jet clogging is a common cause of hard starting or poor idling.
Electrical Issues:
Older wiring harnesses can degrade, leading to intermittent electrical faults. CDI units can also fail.
Engine Wear:
As with any older engine, expect potential wear on piston rings, cylinder walls, and valve guides, leading to oil consumption or loss of compression.
Suspension Wear:
Shock absorbers and bushings can wear out, affecting ride quality and handling.
Manufacturer:
Yamaha Motor Corporation
Heritage Focus:
Yamaha has a strong heritage in powersports, including motorcycles, snowmobiles, and ATVs.
Moto4 Lineup:
The Moto-4 series was Yamaha's initial foray into the ATV market, establishing their presence.
Predecessor Successor:
The YFM200 was a foundational model, later succeeded by more advanced ATV designs from Yamaha.
Production Period:
1985-1989
Manufacturing Location:
Likely Japan, though final assembly could have occurred in other regions.
