1986 Yamaha Moto 4 200 Manual

The 1986 Yamaha Moto 4 200 is a rugged 200cc four-wheel ATV featuring shaft drive, electric start, reverse gear, full floorboards, front and rear racks, dual headlights, and comprehensive instrumentation. Designed for utility and recreational use with Yamaha's reliable air-cooled engine and automatic transmission. Below are key sections for safety, features, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Pre-Ride Inspection 3. Controls and Operation 4. Specifications 5. Maintenance Schedule 6. Engine Service 7. Transmission & Drive 8. Electrical System 9. Storage & Care 10. Safety Information 11. Troubleshooting

Features at a Glance

Key components: 200cc air-cooled 4-stroke engine, shaft drive system, automatic transmission with reverse, full instrumentation, front and rear cargo racks.

Feature	Description
Engine Type	200cc air-cooled 4-stroke SOHC
Drive System	Shaft drive with reverse gear
Starting System	Electric start with backup recoil
Transmission	Automatic CVT with high/low range
Suspension	Independent front, swingarm rear
Brakes	Drum brakes front and rear
Fuel Capacity	2.6 gallons (9.8 liters)
Instrumentation	Speedometer, odometer, fuel gauge, neutral/reverse indicators
Cargo Capacity	Front and rear racks rated for 66 lbs each
Lighting	Dual headlights, taillight, brake light

Pre-Ride Inspection

Always perform pre-ride check before operation.

Check fuel level: Ensure adequate fuel for intended ride.
Inspect tires: Check pressure and condition for damage.
Test brakes: Verify proper front and rear brake operation.
Check controls: Ensure throttle, brake levers function smoothly.
Verify lights: Test headlights, taillight, and indicators.

WARNING! Never operate without proper inspection. Always wear helmet and protective gear.

Controls and Operation

Main controls: Handlebar switches, brake levers, throttle, gear selector, ignition key.

Starting Procedure: Turn key to ON, ensure in neutral, pull brake lever, press start button.

Transmission Operation: Select H (high), L (low), N (neutral), or R (reverse) with gear lever. Use reverse for slow-speed maneuvering only.

Instrument Panel: Speedometer shows mph/kmh, odometer tracks total distance, fuel gauge indicates level, neutral and reverse lights show gear position.

Specifications

Engine: 200cc 4-stroke SOHC, air-cooled
Bore x Stroke: 67.0mm x 56.6mm
Compression Ratio: 8.3:1
Fuel System: Mikuni VM22SS carburetor
Ignition System: CDI electronic ignition
Transmission: Automatic CVT with reverse
Final Drive: Shaft drive
Suspension Travel: Front 5.1 in, Rear 4.3 in
Brakes: Drum brakes front and rear
Tires: Front 22x7-10, Rear 22x10-10
Dry Weight: 386 lbs (175 kg)
Ground Clearance: 5.9 in (150 mm)

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Service Item	Every 100 mi	Every 500 mi	Every 1000 mi
Engine Oil Change		✓
Oil Filter			✓
Air Filter Clean	✓
Air Filter Replace			✓
Spark Plug			✓
Brake Inspection	✓
Drive Shaft Lube			✓
Wheel Bearing Check		✓

Engine Service

Engine maintenance procedures for optimal performance.

Oil Change: Warm engine, drain oil, replace with 10W-40 motorcycle oil (1.6 qt).
Spark Plug: Replace with NGK DR8ES-L, gap 0.024-0.028 in.
Air Filter: Clean foam element in solvent, re-oil with filter oil.
Valve Clearance: Check every 1000 mi - intake 0.004-0.006 in, exhaust 0.006-0.008 in.
Carburetor: Clean jets and passages if experiencing poor performance.

CAUTION! Engine must be cool before servicing. Use proper tools and safety equipment.

Transmission & Drive

Shaft drive system maintenance and operation.

Check transmission fluid level regularly
Inspect drive shaft boots for cracks or damage
Lube drive shaft splines every 1000 miles
Check rear differential oil level
Inspect universal joints for wear

Transmission Fluid: Use Yamaha ATF Type F or equivalent. Capacity: 1.1 qt.

Rear Differential: Use 80W-90 gear oil. Capacity: 0.42 qt.

Electrical System

12V electrical system with battery, charging system, and lighting.

Battery: 12V 14Ah, maintain proper water level
Charging System: AC magneto with rectifier/regulator
Fuses: Main 20A, Headlight 10A
Bulbs: Headlight 25/25W, Taillight 8W, Brake light 23W

Battery Maintenance: Keep terminals clean, check specific gravity regularly, maintain proper water level with distilled water.

Storage & Care

Proper storage procedures for extended periods.

Clean thoroughly and dry completely
Change oil and filter
Add fuel stabilizer to full tank
Remove battery and store separately
Inflate tires to maximum pressure
Store in dry, covered location

CAUTION! Do not store with fuel in carburetor. Drain or run until dry.

Safety Information

Critical safety information for operation.

Always wear DOT-approved helmet and protective gear
Never operate on public roads unless legally permitted
Do not carry passengers - designed for operator only
Avoid excessive speeds and risky maneuvers
Keep hands and feet inside vehicle at all times
Do not operate under influence of alcohol or drugs
Ride within your skill level and ability

WARNING! ATVs can be hazardous to operate. Always follow safety guidelines and local regulations.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Fuel, spark, or compression issue	Check fuel valve, spark plug, compression
Poor performance	Dirty air filter, clogged carb	Clean/replace air filter, clean carburetor
Electrical failure	Dead battery, blown fuse	Charge/replace battery, check fuses
Transmission slipping	Low fluid, worn belt	Check fluid level, inspect drive belt
Brakes ineffective	Worn pads, air in lines	Replace brake shoes, bleed if necessary
Overheating	Low coolant, clogged radiator	Check coolant level, clean radiator fins

Service: Contact authorized Yamaha dealer for complex repairs. Use genuine Yamaha parts for replacement.