1987 Honda Fourtrax 125 Manual

The 1987 Honda Fourtrax 125 is a compact, versatile all-terrain vehicle featuring a 124cc four-stroke engine, shaft drive system, automatic clutch, front and rear racks, full floorboards, and electric start. Designed for recreational and utility use with reliable performance in various terrain conditions. Below are key sections for safety, features, maintenance, operation, and troubleshooting.

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

Features at a Glance

Key components: 124cc four-stroke engine, shaft drive, automatic clutch, front and rear racks, full floorboards, electric start with backup recoil starter.

FeatureDescription
Engine Type124cc air-cooled four-stroke SOHC
Drive SystemShaft drive with automatic clutch
Starting SystemElectric start with backup recoil starter
SuspensionFront: Double wishbone, Rear: Swingarm
BrakesFront: Drum, Rear: Drum
TiresFront: 21x7-10, Rear: 22x11-8
Fuel Capacity2.1 gallons (8 liters)
Load CapacityFront rack: 22 lbs, Rear rack: 66 lbs
Transmission5-speed with reverse
DimensionsLength: 68.5 in, Width: 41.3 in, Height: 41.7 in

Safety Information

Always wear appropriate safety gear and follow safe operating procedures.

  1. Always wear helmet, eye protection, gloves, and protective clothing.
  2. Never operate under influence of alcohol or drugs.
  3. Do not carry passengers - designed for single rider only.
  4. Avoid paved surfaces - not designed for street use.
  5. Keep hands and feet away from moving parts while operating.

WARNING! ATVs can be hazardous to operate. Always follow safety guidelines and receive proper training.

Controls and Instruments

Main controls located on handlebars and within rider reach.

  1. Throttle lever: Right handlebar - control engine speed
  2. Brake lever: Right handlebar - front brake control
  3. Brake pedal: Right foot - rear brake control
  4. Shift lever: Left foot - gear selection
  5. Reverse lever: Left handlebar - engage reverse gear
  6. Key switch: Right of handlebars - ignition and lighting
  7. Choke lever: Left side of carburetor - cold starting
  8. Fuel valve: Under seat - fuel supply control

CAUTION! Familiarize yourself with all controls before operation.

Specifications

Operation Instructions

Proper starting and operating procedures for optimal performance.

  1. Pre-ride inspection: Check tires, controls, fluids, and lights
  2. Starting: Turn fuel on, set choke, engage brake, turn key
  3. Warm-up: Allow engine to warm for 2-3 minutes
  4. Shifting: Come to complete stop before shifting into reverse
  5. Riding: Maintain safe speeds for conditions and terrain
  6. Stopping: Apply both brakes evenly, shift to neutral

Tip: Always perform pre-ride inspection before operation.

Maintenance Schedule

Regular maintenance ensures longevity and reliable performance.

ItemEvery 100 miEvery 500 miEvery 1000 mi
Engine OilCheckChangeChange
Oil Filter--Replace
Air FilterCleanCleanReplace
Spark PlugCheckCleanReplace
Brake PadsInspectInspectReplace
Drive ShaftLubricateLubricateLubricate
Tire PressureCheckCheckCheck

Basic Maintenance Procedures

Essential maintenance tasks for proper ATV care.

  1. Engine Oil Change: Drain old oil, replace filter, refill with 10W-40
  2. Air Filter Service: Remove, clean with solvent, oil lightly, reinstall
  3. Spark Plug: Check gap (0.028-0.031 in), clean or replace as needed
  4. Brake Adjustment: Check pedal free play, adjust if necessary
  5. Tire Inspection: Check pressure (3.5 psi front, 3.0 psi rear)
  6. Drive Shaft Lubrication: Grease fittings until grease appears

WARNING! Always support ATV securely when performing maintenance.

Storage Guidelines

Proper storage procedures for extended periods of non-use.

  1. Fuel System: Add fuel stabilizer, run engine for 5 minutes
  2. Battery: Remove and store in cool, dry place
  3. Tires: Inflate to proper pressure, elevate off ground
  4. Cleaning: Wash thoroughly and apply protective coating
  5. Cover: Use breathable cover in dry, well-ventilated area

CAUTION! Store with ethanol-free fuel if possible to prevent fuel system damage.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startFuel, spark, or compressionCheck fuel valve, spark plug, choke setting
Hard startingDirty carburetor, weak batteryClean carburetor, charge or replace battery
Poor performanceClogged air filter, old spark plugClean/replace air filter, replace spark plug
Electrical issuesBlown fuse, bad connectionCheck 10A main fuse, inspect wiring
Brakes draggingMisadjusted, contaminatedAdjust brakes, clean brake components

Service: Contact authorized Honda dealer for complex repairs.

Warranty Information

Limited warranty coverage for 1987 Honda Fourtrax 125. Original warranty period has expired. For parts and service, contact authorized Honda dealers. Genuine Honda parts recommended for optimal performance and reliability.

For technical support and parts information: Contact American Honda Motor Co., Inc. or visit authorized Honda dealership.

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