1986 Honda XR80R Manual

The 1986 Honda XR80R is a lightweight, air-cooled four-stroke dirt bike designed for off-road use and beginner riders. Featuring a 79cc single-cylinder engine, 5-speed transmission, front and rear drum brakes, and rugged suspension system. Below are key sections for safety, features, maintenance, operation, and troubleshooting.

Features at a Glance

Key components: 79cc four-stroke engine, 5-speed transmission, front telescopic fork, rear swingarm suspension, drum brakes front and rear.

Pre-Ride Inspection

Always perform safety check before each ride.

1. Check fuel level: Ensure adequate fuel for intended ride.
2. Inspect tires: Check pressure and condition for damage.
3. Test brakes: Verify front and rear brake operation.
4. Check controls: Ensure throttle, clutch, and brake levers function properly.
5. Verify chain tension: Adjust if loose or tight.

WARNING! Failure to inspect bike may result in accident or injury. Always wear proper safety gear.

Basic Operation

Starting and riding procedures for beginners.

1. Starting engine: Turn fuel valve ON, set choke for cold starts, kick start firmly.
2. Shifting gears: Use clutch lever to shift up or down through 5-speed transmission.
3. Braking: Apply both front and rear brakes evenly for controlled stops.
4. Turning: Lean bike into turns while maintaining throttle control.

CAUTION! Practice in safe, open area before riding on trails or roads.

Specifications

• Engine: 79cc 4-stroke single cylinder, air-cooled
• Bore x Stroke: 47.5mm x 44.7mm
• Compression Ratio: 9.7:1
• Carburetor: 16mm piston type
• Ignition: CDI
• Transmission: 5-speed constant mesh
• Final Drive: #420 chain
• Front Tire: 2.50-16
• Rear Tire: 3.00-14
• Fuel: Regular unleaded gasoline

Controls and Components

Main controls: Throttle, clutch lever, front brake lever, gear shift lever, rear brake pedal.

Instrument Panel: Speedometer, odometer, neutral indicator light.

Fuel System: Fuel valve (ON, RES, OFF positions), choke lever. Electrical: Ignition switch, kill switch, headlight, taillight. Maintenance Points: Oil fill cap, oil drain plug, air cleaner access, spark plug.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

1. Engine oil: Change every 6 months or 600 miles
2. Oil filter: Clean with each oil change
3. Air filter: Clean every 300 miles, replace as needed
4. Spark plug: Clean and gap every 600 miles, replace annually
5. Chain: Clean and lubricate every 200 miles
6. Brakes: Inspect pads and adjust cables monthly
7. Tires: Check pressure weekly, inspect for wear

Tip: Keep maintenance records for reference and resale value.

Engine Service

Basic engine maintenance procedures.

1. Oil change: Warm engine, drain oil, replace filter, refill with 0.8 quarts
2. Spark plug: Remove old plug, gap to 0.024-0.028 inches, install new plug
3. Air filter: Remove cover, clean foam element in solvent, re-oil and reinstall
4. Valve clearance: Check every 1200 miles, adjust intake to 0.002", exhaust to 0.003"
5. Carburetor: Clean jets and passages if engine runs poorly

WARNING! Engine components get hot; allow to cool before servicing.

Troubleshooting

Reset: For electrical issues, check battery connections and fuses.

Service: Contact authorized Honda dealer for complex repairs.

Storage Procedures

Proper storage prevents damage during periods of non-use.

1. Fuel system: Add fuel stabilizer or drain tank and carburetor
2. Battery: Remove and store in cool, dry place
3. Tires: Inflate to proper pressure and elevate off ground
4. Exterior: Clean thoroughly and apply protective coating
5. Cover: Use breathable motorcycle cover

CAUTION! Store in dry location away from direct sunlight and moisture.

Safety Information

Always wear DOT-approved helmet, eye protection, gloves, long sleeves, long pants, and over-the-ankle boots. Ride within your skill limits and obey all local laws. Never ride under influence of alcohol or drugs. This motorcycle is designed for off-road use only by riders 12 years and older.