1987 Honda TRX350D Foreman 4x4 Manual

The 1987 Honda TRX350D Foreman 4x4 is a rugged all-terrain vehicle featuring four-wheel drive capability, 350cc four-stroke engine, electric start, dual-range transmission, front and rear racks, and durable suspension system. This manual covers safety precautions, operation procedures, maintenance schedules, troubleshooting, and technical specifications for proper use and care of your ATV.

1. Features at a Glance 2. Safety Information 3. Controls and Instruments 4. Operation Procedures 5. Maintenance Schedule 6. Technical Specifications 7. Lubrication Points 8. Storage Procedures 9. Troubleshooting 10. Warranty Information

Features at a Glance

Key components: 350cc OHC four-stroke engine, Four-wheel drive system, Dual-range transmission, Electric start with backup recoil, Front and rear cargo racks.

Feature	Description
Engine	350cc air-cooled four-stroke OHC
Drive System	Selectable 2WD/4WD with differential lock
Transmission	5-speed with reverse, dual-range sub-transmission
Starting System	Electric start with auxiliary recoil
Suspension	Independent front, swingarm rear
Brakes	Drum brakes front and rear
Fuel Capacity	3.7 gallons (14 liters)
Cargo Capacity	Front: 66 lbs, Rear: 133 lbs
Towing Capacity	850 lbs maximum
Dry Weight	507 lbs (230 kg)

Safety Information

Always wear approved helmet, eye protection, and protective clothing. Never operate under influence of alcohol or drugs.

Pre-ride inspection: Check tires, brakes, controls, lights before each use.
Riding techniques: Keep both hands on handlebars, both feet on footrests.
Load limits: Do not exceed specified weight capacities.
Terrain awareness: Adjust speed for conditions, avoid sharp turns at high speed.

WARNING! ATV can be hazardous to operate. Never carry passengers. Always follow local regulations.

Controls and Instruments

Familiarize yourself with all controls before operation.

Handlebar controls: Throttle, brake lever, 2WD/4WD selector, light switch.
Dash indicators: Neutral light, reverse light, oil pressure warning.
Transmission: Shift lever positions (N-1-2-3-4-5-R), range selector (L-H).
Fuel valve: Three positions (ON, RES, OFF).
Choke: Used for cold starting.

CAUTION! Ensure proper understanding of all controls before operation.

Operation Procedures

Starting Engine: Turn fuel valve ON, set choke, shift to neutral, press brake, turn key.
Warm-up: Allow 2-3 minutes at idle before riding.
Shifting: Use clutch for smooth gear changes, avoid high RPM shifts.
4WD Operation: Engage only when needed for traction, disengage on hard surfaces.
Braking: Use both front and rear brakes together for controlled stops.
Reverse: Come to complete stop before shifting to reverse.

Maintenance Schedule

Access OSD via TV MENU or SETUP (DVD). Front Panel: POWER, OPEN/CLOSE, AUTO/DPMS, MUTE.

Daily/Pre-ride: Check tire pressure, brakes, controls, lights, oil level.

Every 100 miles/1 month: Change engine oil, clean air filter, check drive chain. Every 500 miles/6 months: Replace spark plug, check valve clearance, inspect brakes. Every 1000 miles/12 months: Change differential oil, inspect suspension, check wheel bearings.

Technical Specifications

Antenna: Rear connector. AV: AV1/AV2 for composite/S-Video. PC: VGA + audio.

Engine Type: 350cc 4-stroke OHC, air-cooled
Bore x Stroke: 79.0mm x 71.0mm
Compression Ratio: 8.5:1
Carburetor: 26mm constant velocity
Ignition: CDI electronic
Transmission: 5-speed with reverse + dual-range
Drive System: Shaft drive with selectable 4WD
Front Suspension: Independent double wishbone
Rear Suspension: Swingarm with dual shocks
Tire Size: Front: 24x8-12, Rear: 24x10-11

Lubrication Points

Regular lubrication ensures long component life and smooth operation.

Drive chain: Clean and lubricate every 100 miles.
Throttle cable: Light oil monthly or as needed.
Brake levers: Grease pivot points every 500 miles.
Suspension: Check shock absorber oil seals regularly.
Steering stem: Grease bearings annually.

Tip: Use only recommended lubricants specified in manual.

Storage Procedures

Proper storage prevents damage during extended non-use periods.

Fuel system: Add fuel stabilizer or drain completely.
Battery: Remove and store in cool, dry place.
Tires: Inflate to maximum pressure, elevate off ground.
Cleaning: Wash thoroughly and apply protective coating.
Cover: Use breathable cover in dry storage area.

WARNING! Store in well-ventilated area away from open flames.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Fuel, spark, compression	Check fuel valve, spark plug, choke setting.
Poor performance	Dirty air filter, carburetor	Clean/replace air filter, adjust carburetor.
Electrical issues	Battery, connections	Check battery voltage, clean terminals.
Transmission problems	Low oil, linkage	Check oil level, adjust shift linkage.
4WD not engaging	Selector, linkage	Check selector cable, front differential.

Service: Contact authorized Honda dealer for major repairs.

Parts: Use only genuine Honda replacement parts.

Warranty Information

Limited warranty coverage for 6 months from date of purchase. Covers defects in materials and workmanship. Normal maintenance items, wear items, and damage from abuse or improper maintenance excluded. For warranty claims, contact authorized Honda dealer with proof of purchase.