1986 KLF300A Manual

The 1986 KLF300A is a 4-wheel ATV featuring a 280cc 4-stroke engine, automatic clutch with 5-speed transmission, shaft drive system, electric start with backup recoil starter, front and rear suspension, hydraulic drum brakes, and full instrumentation. Below are key sections for safety, features, operation, maintenance, and troubleshooting.

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

Features at a Glance

Key components: 280cc 4-stroke engine, 5-speed transmission with automatic clutch, shaft drive, electric start, full instrumentation.

FeatureDescription
Engine Type4-stroke, air-cooled, single cylinder
Displacement280cc
Transmission5-speed with automatic clutch
Drive SystemShaft drive
Starting SystemElectric with backup recoil starter
BrakesHydraulic drum brakes front and rear
SuspensionFront and rear suspension system
Fuel Capacity3.7 gallons
InstrumentationSpeedometer, odometer, fuel gauge, warning lights
Load Capacity330 lbs total

Pre-Ride Inspection

Always perform pre-ride inspection before operation.

  1. Check fuel level and fuel system for leaks
  2. Inspect tires for proper pressure and damage
  3. Test brakes for proper operation
  4. Check oil level and engine condition
  5. Verify all lights and electrical systems function
  6. Ensure throttle operates smoothly

WARNING! Never operate without proper inspection. Always wear protective gear including helmet, eye protection, and appropriate clothing.

Operation Controls

Familiarize yourself with all controls before operation.

Handlebar Controls: Throttle lever, brake lever, ignition switch, light switch, choke, starter button.

Instrument Panel: Speedometer, odometer, fuel gauge, neutral indicator, high beam indicator, oil pressure warning light.

Foot Controls: Gear shift lever, brake pedal.

Starting Procedure: Turn fuel valve ON, set choke, turn ignition ON, pull brake lever, press starter button.

Specifications

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Service ItemEvery 100 miEvery 500 miEvery 1000 mi
Engine oil change
Oil filter replacement
Air filter cleaning
Spark plug inspection
Brake inspection
Tire pressure check
Drive shaft lubrication

Engine Service

Proper engine maintenance is critical for performance.

  1. Oil Change: Warm engine, drain oil, replace filter, refill with recommended oil
  2. Air Filter: Clean foam element in solvent, re-oil, reinstall
  3. Spark Plug: Check gap (0.028-0.031 in), clean or replace as needed
  4. Valve Clearance: Check and adjust intake (0.002-0.003 in) and exhaust (0.003-0.004 in)
  5. Carburetor: Clean and adjust as needed for proper idle and performance

CAUTION! Engine components become hot during operation. Allow to cool before servicing.

Transmission & Drive

Shaft drive system requires regular maintenance.

  1. Check transmission oil level regularly
  2. Inspect drive shaft boots for damage
  3. Lubricate drive shaft splines every 1000 miles
  4. Check for unusual noises or vibrations
  5. Ensure proper gear shifting operation

Tip: Always use recommended lubricants for transmission and final drive.

Brake System

Hydraulic drum brakes require regular inspection and adjustment.

  1. Check brake fluid level in master cylinder
  2. Inspect brake pads for wear
  3. Adjust brake cable tension as needed
  4. Test brake operation before each ride
  5. Bleed brake system if spongy feel develops

WARNING! Brakes are critical for safety. Never operate with malfunctioning brakes.

Electrical System

12V electrical system with battery, alternator, and various components.

Battery: 12V maintenance type, check electrolyte level monthly

Charging System: Alternator output, check charging voltage (13.5-15V at 5000 RPM)

Lights: Headlight, taillight, brake light, indicator lights

Starting System: Electric starter motor, solenoid, ignition switch

Storage & Care

Proper storage prevents damage during periods of non-use.

  1. Drain fuel or add fuel stabilizer
  2. Change oil and filter
  3. Clean air filter
  4. Remove battery and store separately
  5. Inflate tires to proper pressure
  6. Store in dry, covered location

CAUTION! Never store with fuel in carburetor for extended periods.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startFuel, spark, compressionCheck fuel flow, spark plug, compression
Poor performanceAir filter, carburetorClean air filter, adjust carburetor
Electrical failureBattery, connectionsCheck battery charge, clean connections
Brake problemsFluid, adjustmentCheck fluid level, adjust brakes
Transmission issuesOil level, linkageCheck oil, inspect shift linkage

Service: Contact authorized service center for complex repairs

Parts: Use genuine replacement parts for optimal performance

1986 KLF300A Manual © - All Rights Reserved 2025