Argo 8x8 Avenger User Manual (English)

Questions and Answers:

S
Samuel KelleyAug 15, 2025
How to fix inoperative electric starter on Argo Utility Vehicle?
- D
  dennis74Aug 16, 2025
  If the electric starter on your Argo Utility Vehicle isn't working, start by checking for loose electrical connections and clean and re-tighten them. If that doesn't solve the issue, the battery charge may be low or dead; recharge the battery or replace it if necessary. If the problem persists, the starter motor may be faulty, and you should return the vehicle to an Argo dealer for servicing.
M
Matthew LawrenceAug 18, 2025
What to do if Argo Utility Vehicle engine turns over but will not start?
- M
  Mary BrooksAug 18, 2025
  If your Argo Utility Vehicle engine turns over but won't start, first ensure the choke is pulled out if the engine is cold. If the fuel tank is empty, refill it. A blocked fuel or air filter could also be the culprit; remove any obstruction or replace the filter if needed. Also, check that electric fuel pump is operating and make sure fuel shut off solenoid is activated to allow fuel into carburetor (Kawasaki engine only). Other potential issues include defective or fouled spark plugs (clean, re-gap, or replace them), a carburetor adjustment that's too lean (adjust as detailed in the engine manufacturer’s manual), or an inoperative ignition system (have it serviced by a trained mechanic). For insufficient compression, take the vehicle to a factory-authorized engine repair outlet.
K
Kyle GoodwinAug 22, 2025
Why Argo 8x8 Avenger Utility Vehicle pulls to the right?
- J
  Jennifer WrightAug 22, 2025
  If your Argo Utility Vehicle is pulling to the right, first, inflate all tires to the correct pressure if the right tire pressure is too low or the left tire pressure is too high. Also, ensure the steering lever is held forward against the dash. If required, adjust the brake assembly if the right brake is engaged. If the right side drive chain is broken, repair or replace it.
M
Monique JohnsonAug 25, 2025
What to do if Argo Utility Vehicle will not move or turn?
- B
  Benjamin BakerAug 25, 2025
  If your Argo Utility Vehicle won't move or turn, make sure the transmission is properly engaged in gear. If the drive belt is worn, replace it. If the clutch isn't engaging or there's a transmission failure, return the vehicle to an Argo dealer for servicing. Check the brakes and adjust the caliper or replace the brake pads if they're not functioning. Additionally, inspect the idler chain and repair or replace it if broken. If the idler sprocket weld is broken, have the vehicle serviced by an Argo dealer.
J
Johnathan OrtizAug 27, 2025
Why is my Argo 8x8 Avenger Utility Vehicle experiencing severe vibration?
- E
  Erika JonesAug 28, 2025
  If you experience severe vibration when operating your Argo Utility Vehicle, take the vehicle to an Argo dealer for service if the engine is loose on its mounts or if the driver, driven clutch, or engine is defective. Alternatively, remove and straighten or replace a bent axle. Replace a bent wheel rim. Replace a worn or damaged drive belt, and consider clutch service.
K
kimberlyrogersAug 30, 2025
Why Argo Utility Vehicle hydraulic brakes are spongy?
- R
  Rodney ClarkeAug 30, 2025
  If the hydraulic brakes on your Argo Utility Vehicle feel spongy, or there is excessive steering lever travel, have an Argo dealer bleed the brake system and add fluid if there's air in the hydraulic system. If there's a leak in the system, have an Argo dealer check all fittings, hoses, calipers, and seals for loose connections or leakage and refill as needed. If the brakes are loose, adjust or tighten them.
A
Amber BrownSep 3, 2025
How to fix air leaking from Argo 8x8 Avenger Utility Vehicle tire?
- C
  Cynthia ReynoldsSep 3, 2025
  If your Argo Utility Vehicle tire leaks air, remove the tire from the rim and repair the hole with a radial tire patch or install a tube in the tire if the tire is punctured. If the tire is not properly seated on the bead, deflate the tire and carefully push the tire bead off the rim, clean the rim bead area to remove dirt and foreign matter, and re-inflate the tire. If the position of the air leak is not obvious, submerge the tire and rim in a water tank to check for air escaping through the rim halves or the valve stem, then repair as required. Replace a defective valve.
D
Daniel DuarteSep 5, 2025
What to do if Argo 8x8 Avenger brakes are ineffective?
- J
  Johnny MitchellSep 5, 2025
  If the brakes on your Argo Utility Vehicle are ineffective, have the pads cleaned by an Argo dealer or replace the pads if they have overheated and glazed or if they are contaminated with lubricant. Replace the pads if they are worn beyond 0.10".
K
Krista AllenSep 8, 2025
Why is there a loud bang when turning Argo 8x8 Avenger Utility Vehicle?
- M
  Michele HinesSep 8, 2025
  If you hear a loud bang when turning your Argo Utility Vehicle right or left, adjust or replace the idler chains if they are worn or loose. Also, adjust or replace the drive chains if they are worn or loose.

Argo 8x8 Avenger Specifications

General

Brand	Argo
Model	8x8 Avenger
Category	Utility Vehicle
Language	English

Summary

A Message from Argo Builders

Important Notes and Symbols

Warning and Caution Symbols

Explains warning and caution symbols used in the manual.

Preface and Operator Responsibilities

Caution to the Argo Owner/Operator

Lists essential safety and operating precautions for owners and operators.

General Information Overview

Amphibious Operation

Details on amphibious operation procedures and precautions.

Maintenance Procedures

Lists operator-maintainable procedures and available service manuals.

Wind Chill Factor

Explains wind chill and advises on dressing warmly for protection.

Model Identification

Explains how to identify vehicle models based on VIN prefixes.

Argo Vehicle Specifications

Argo 6x6 Vanguard (S) Specifications

Details engine, transmission, fuel, speed, and load capacity for Vanguard (S).

Argo 6x6 Bigfoot (B) Specifications

Details engine, transmission, fuel, speed, and load capacity for Bigfoot (B).

Argo 6x6 Vanguard2 (N) Specifications

Details engine, transmission, fuel, speed, and load capacity for Vanguard2 (N).

Argo 8x8 Response (R) Specifications

Details engine, transmission, fuel, speed, and load capacity for Response (R).

Argo 6x6 Conquest (A) Specifications

Details engine, transmission, fuel, speed, and load capacity for Conquest (A).

Argo Model Specifications and Accessories

Avenger (V) and Avenger EFI (H) Specifications

Details specifications for Avenger (V) and Avenger EFI (H) models.

Argo Frontier (F) Specifications

Details specifications for the Argo Frontier (F) model.

Argo Vehicle Capacity and Accessory Impact

Explains how accessories affect vehicle capacity and lists weight reductions.

Rear Seats - 8 Wheel Models

Instructions for removing and installing rear seats on 8-wheel models.

Control Identification and Location

Vanguard Model Controls

Diagram and labels for controls on Vanguard models.

Vanguard2, Bigfoot, and Response Controls

Diagram and labels for controls on Vanguard2, Bigfoot, and Response models.

Conquest Model Controls

Diagram and labels for controls on Conquest models.

Control Identification and Location (Continued)

Avenger Models Controls

Diagram and labels for controls on Avenger models.

Frontier Model Controls

Diagram and labels for controls on Frontier models.

Information Labels and Rear Compartment Capacity

Information Labels Overview

Describes various labels indicating hazards and operating instructions.

Rear Compartment Capacity Label

Details capacity limits for the rear compartment of 6-wheel models.

General Operating Information

New Vehicle "Break-In" Procedure

Guidelines for breaking in a new vehicle for optimal service.

Pre-Operation Checks

Daily checks to ensure the vehicle is safe and ready for operation.

Carrying Passengers and Cargo

Recommendations for safely carrying passengers and cargo.

Operating Precautions and Safety

Operators with Disabilities

Safety precautions for operators with disabilities.

General Operating Recommendations

General safety advice, including fire extinguishers and communication.

Water Operation Precautions

Safety measures for operating the vehicle in water.

Land Operation and Fueling

Land Operation Safety

Safety guidelines for operating the vehicle on land.

Fueling the Vehicle

Safe procedures and precautions for fueling the Argo.

Fuel System and Cleaning Precautions

Vented Fuel System

Describes the vented fuel system and related precautions.

Brakes and Steering

Brakes and Steering (All S Models)

Explains steering levers for turning and stopping on S models.

Brakes and Steering (All V, H, F, C, R, B, A, N Models)

Explains handle bar steering for turning and stopping.

Holding Brake System (Avenger, Frontier, Conquest, Response, Bigfoot & Vanguard2)

Instructions for applying and releasing the holding brake system.

Holding Brake System and Throttle Control

Holding Brake System (Vanguard)

Instructions for applying and releasing the holding brake on Vanguard.

Throttle Control

How to use the throttle twist grip to control vehicle speed.

Starting Procedures and Transmission Gears

Priming Procedure for Avenger EFI

Procedure for priming the fuel system after running out of fuel.

Stopping the Engine

Steps to safely shut off the engine.

Manual Starting Procedure

How to manually start Vanguard, Vanguard2, Bigfoot, Response & Frontier models.

Selecting and Changing Transmission Gears (All C, R, B, A, N and S models)

Explains the four-position transmission and how to shift gears.

Transmission Gears and Headlights

Selecting and Changing Transmission Gears (Avenger & Frontier Models)

Details the four-position transmission and gear shifting for Avenger/Frontier.

Headlights Operation

How to operate the headlights and battery precautions.

Driving Procedures

Driving Straight Ahead

How to drive straight ahead using steering levers or handle bar.

Stopping the Vehicle

How to stop the vehicle using steering levers or handle brake.

Turning the Vehicle

Explains skid steering and turning precautions.

Turning and Backing Procedures

Left Turn Procedures

Specific instructions for making a left turn.

Right Turn Procedures

Specific instructions for making a right turn.

Backing the Vehicle Up

How to back up the vehicle.

Turning While Backing Up

How to turn the vehicle while backing up.

Driving in Unusual Conditions

Remote Area Use

Essential items and precautions for traveling in remote areas.

Angle of Operation

Engine oil and fuel delivery considerations at angles.

Uphill Operation

Safety and handling advice for driving uphill.

Downhill, Side Slope, and Amphibious Operations

Downhill Operation

Safety and handling advice for driving downhill.

Side Slope Operation

Precautions and risks associated with side slope operation.

Amphibious Operation - General

General safety and operating precautions for water use.

Amphibious Operation Details

Amphibious Operation Precautions

Pre-entry checks and safety measures for water operation.

Entering the Water

Steps and precautions for entering water bodies.

Driving Procedures in Water

How to operate the vehicle while floating on water.

Water Exit, Winter Operation, and Ice Safety

Driving Out of Water

Steps for safely exiting water bodies.

Outboard Motor Bracket

Information on mounting and using outboard motors.

Winter Operation Precautions

Precautions for operating the Argo in winter conditions.

Winter Operation on Ice

Use on Ice Covered Bodies of Water

Warnings and precautions for using the Argo on ice.

Engine Oil Information

Checking the Engine Oil Level

Procedures for checking engine oil levels on different engine types.

Recommended Engine Oil

Guidance on selecting the correct engine oil viscosity and API service class.

Engine Oil Capacity and Changing

Engine Oil Capacity Chart

Table showing oil capacities for different Argo models and engines.

Changing Engine Oil

Step-by-step instructions for draining and refilling engine oil.

Transmission Oil and Filter Information

Transmission Oil Information

Procedures for checking and changing transmission oil.

Filter Information

Information on air, fuel, and oil filters.

Lubrication Information

General Lubrication Requirements

Lists components requiring regular lubrication.

Driven Clutch Lubrication

How to lubricate the driven clutch.

Drive Chain Lubrication

Instructions for lubricating and cleaning drive chains.

Idler Chain and Axle Bearing Lubrication

Idler Chain Lubrication

How to lubricate idler chains and precautions.

Outer Axle Flange & Bearing Lubrication

Greasing procedures for outer axle flanges and bearings.

Idler Shaft and Inner Axle Bearing Lubrication

Idler Shaft Bearing Lubrication (All models except Frontier and Avengers)

Greasing procedure for idler shaft bearings on specific models.

Inner Axle Bearing Lubrication

Greasing procedure for inner axle bearings.

Idler Shaft Bearing Lubrication (Frontier and Avenger Models)

Greasing procedure for idler shaft bearings on Frontier and Avenger.

Electrical System Maintenance

General Electrical System Precautions

Precautions to prevent damage to the electrical system.

Battery Maintenance

Checking fluid level, charging, and cleaning battery terminals.

Electrical System Components and Drive System

Electrical System Fuses

Information on fuse locations and replacement.

Spark Plugs

Spark plug inspection, cleaning, and replacement.

Spark Arrester Cleaning

Cleaning and inspecting the spark arrester assembly.

Drive System & Tires Warning

Warning about servicing moving parts while the engine is running.

Drive Belt and Clutch Maintenance

Drive Belt Inspection and Replacement

How to check and replace the drive belt.

Clutch Maintenance (Indications for Service)

Signs that indicate the clutch units require servicing.

Clutch Sliders and Drive Chain Maintenance

Clutch Sliders Inspection

Inspecting and replacing nylon sliders in the driven clutch.

Drive Chains Maintenance

Preventing sprocket damage and when to replace chains.

Removing Drive Chains

Step-by-step procedure for removing drive chains.

Drive Chain Installation and Take-Up System

Installing Drive Chains

Step-by-step procedure for installing drive chains.

Drive Chain Take-Up System

Description and operation of the chain tensioning system.

Chain Tensioner and Slider Block Maintenance

Chain Tensioner Operation Check

Checking chain tensioner operation and slack requirements.

Replacing a Slider Block

Instructions for replacing worn nylon slider blocks.

Idler Chain Maintenance

Checking and adjusting idler chains for proper tension.

Idler Chain Adjustment and Replacement

Idler Chain Adjustment Procedure

How to adjust idler chain tension.

Removing Idler Chains

Step-by-step procedure for removing idler chains.

Idler Chain Installation and Tire Inflation

Installing Idler Chains

Step-by-step procedure for installing idler chains.

Tire Inflation Guidelines

Recommended tire pressures for different terrains and conditions.

Tire Repair, Replacement, and Axle Bearing Mounting

Tire Repair and Replacement

Procedures for repairing or replacing tires.

Axle Bearing Mounting

Checking and tightening bearing flange and cork gasket bolts.

Mechanical Brakes - 6x6 Vanguard

General information on mechanical brakes for Vanguard 6x6 models.

Mechanical Brake Adjustments and Pad Replacement

Brake Caliper Adjustment

How to adjust the brake calipers when needed.

Brake Pad Replacement

When and how to replace brake pads.

Steering Lever Adjustment

Adjusting steering levers for proper brake application.

Holding Brake Adjustment

Checking and adjusting the holding brake system.

Hydraulic Brakes and Fluid

Hydraulic Brakes Overview

General information on hydraulic brake systems.

Brake Fluid Level Check

How to check and refill the hydraulic brake fluid level.

Changing Brake Fluid

Procedures for draining, flushing, and refilling brake fluid.

Hydraulic Brake Pad Inspection and Replacement

Hydraulic Brake Pad Inspection

Inspecting hydraulic brake pads for wear or contamination.

Replacing Hydraulic Brake Pads

Step-by-step guide to replacing brake pads.

Brake System Adjustments and Cooling

Hand Brake Adjustment

Adjusting the hand brake lever for proper operation.

Brake Plunger Adjustment

Adjusting master cylinder pistons for brake system health.

Brake Cooling System Operation

Ensuring the brake cooling fan operates correctly.

Engine Cooling and Exhaust System

Engine Cooling System

Coolant recommendations and system care.

Exhaust System Safety

Safety precautions regarding hot exhaust components and fire hazards.

Troubleshooting Common Malfunctions

Electric Starter Issues

Common causes and solutions for an inoperative electric starter.

Engine Not Starting

Troubleshooting steps when the engine turns over but won't start.

Engine Not Running

Checks to perform if the engine will not run.

Vehicle Movement and Turning Issues

Diagnosing problems with vehicle movement or turning.

Vehicle Pulling and Vibration Issues

Vehicle Pulling to the Right

Causes and solutions for the vehicle pulling to the right.

Vehicle Pulling to the Left

Causes and solutions for the vehicle pulling to the left.

Severe Vibration Issues

Diagnosing and resolving severe vehicle vibration.

Water Leaks into Lower Body

Identifying and fixing water leaks into the vehicle body.

Vehicle Cleaning and Storage Preparation

Cleaning the Vehicle

Instructions for washing and cleaning the Argo.

Storing the Vehicle

Procedures for preparing the vehicle for extended storage.

Preparing the Battery for Storage

Steps for storing the battery to prevent damage.

Protecting the Electrical System

How to protect electrical connections from corrosion.

Potential Hazards and Avoidance - Part 1

Operating Without Understanding Manual

Risk of accidents from not knowing how to operate the Argo.

Operation by Underage Drivers

Risks associated with allowing underage individuals to operate the vehicle.

Lack of Safety Gear

Increased risk of injury without helmets and eye protection.

Alcohol or Drug Impairment

Effects of impairment on judgment and reaction time.

Potential Hazards and Avoidance - Part 2

Carrying Passengers in Dump Box

Risk of riders falling off and being killed.

Cargo in Water Operations

Reduced stability and risk of capsizing with cargo in water.

Cargo in Dump Box in Water

Risk of accident, capsizing, and sinking with cargo in water.

Improperly Installed Drain Plugs

Risk of vehicle filling with water, capsizing, or sinking.

Towing in Water

Reduced balance and control when towing in water.

Potential Hazards and Avoidance - Part 3

Operating in Rough Water

Reduced balance and control in strong currents or windy conditions.

Improper Tires or Tire Pressure

Risk of loss of control due to improper tires or pressure.

Improper Modifications

Risks from improper installation or use of accessories.

Potential Hazards and Avoidance - Part 4

Sudden Braking Downhill

Risk of rollover from sudden braking while going downhill.

Operating on Paved Surfaces

Pavement affects handling and control.

Operating on Public Roads

Risk of collision with other vehicles.

Excessive Speeds

Risk of injury or damage from operating at excessive speeds.

Potential Hazards and Avoidance - Part 5

Unfamiliar Terrain Operation

Risk of injury or damage from operating on unfamiliar terrain.

Rough, Slippery, or Loose Terrain

Risk of loss of traction or control, leading to overturns.

Improper Turning

Risk of hitting objects or persons due to vehicle swing-out.

Driving on Inclines with Load

Reduced stability and risk of rolling over with heavy loads.

Potential Hazards and Avoidance - Part 6

Improper Downhill Driving

Risk of rollover from sudden braking downhill.

Crossing Hills or Turning on Hills

Increased risk of rollover and engine damage on slopes.

Stalling or Rolling Backwards on Hills

Risk of loss of control and overturn when climbing hills.

Improper Obstacle Operation

Risk of injury or damage from improper obstacle negotiation.

Potential Hazards and Avoidance - Part 7

Skidding or Sliding

Risk of losing control and overturning due to skidding.

Improper Reverse Operation

Risk of hitting obstacles or persons when operating in reverse.

Holding Brake as Parking Brake

Risk of vehicle rolling due to brake pressure loss.

Bracing Knees Against Firewall

Risk of firewall damage and personal injury from clutch wear.

Potential Hazards and Avoidance - Part 8

Engine Exhaust Fumes

Danger of carbon monoxide poisoning in enclosed areas.

Refueling While Engine is Hot

Extreme flammability of gasoline and explosion risk.

Refueling Outboard Motor Tanks in Argo

Flammability of gasoline and explosion risk.

Accessory Information Overview

Cargo Tie Downs

Using tie downs to secure cargo and safety warnings.

Argo Track Systems

Information on standard, super, and rubber track systems.

Installation Instructions (Standard and Supertrack)

Steps for assembling and installing track segments.

Track System Installation and Removal

Axle Extension Installation

Installing axle extensions for track systems.

Argo Track Installation (Rubber Track)

Steps for installing the 825-50-1 Rubber Track System.

Removal of Argo Tracks

Procedures for removing Argo track systems.

Track System Operation and Ice Cleats

Operating Precautions (Track Systems)

Safety advice for operating with track systems.

Standard Tracks

Intended use and terrain suitability for standard tracks.

Super Tracks

Benefits and limitations of Super Tracks, especially on uneven ground.

825-50-1 Rubber Tracks

Features and benefits of the rubber track system.

Rubber Track Installation and Ice Cleat Kit

Installation Instructions (825-50-1 Rubber Track System)

Detailed steps for installing the rubber track system.

Ice Cleat Kit

Use and safety precautions for ice cleats.

Outboard Motor Brackets and Snow Plow

Outboard Motor Bracket

Information on mounting and using outboard motors.

Outboard Motor Support

Support bracket for outboard motor tail shafts.

Outboard Motor Bracket - Side Mount

Side mount bracket for outboard motors.

Snow Plow Kit

Installation and operating warnings for the snow plow kit.

Argo Storage Covers and Windshield

Argo Storage Covers

How to use storage covers to protect the Argo.

Windshield Installation and Use

Installing and using the windshield, including transport precautions.

Convertible Top and Alternator Kits

Convertible Top Operation and Storage

Folding, storing, and operating the convertible top assembly.

Alternator Kits

Information on alternator kits for powering accessories.

Alternator Kit for Conquest

Checking V-belt tension for the Conquest alternator kit.

Roll Over Protective Structures (ROPS) and Accessories

Snow Plow Operation Precautions

Safety warnings for operating the Argo with a snow plow attached.

Amphibious Trailer Operation

Operating precautions for the amphibious trailer.

Heater Kit

Information on the heater kit for climate control.

Roll Over Protective Structures (ROPS)

Benefits and hazards of ROPS, including stability reduction.

ROPS, Seat Belts, and Dump Box Kit

ROPS Safety and Maintenance

ROPS safety guidelines and maintenance checks.

Rear Bench Seat Installation

Instructions for installing the rear bench seat.

Dump Box Kit Installation and Operation

Installing and operating the dump box kit.

Roll Bar Kit and 12V Accessory Outlet

Roll Bar Kit

Roll bar benefits, safety warnings, and installation.

12V Accessory Outlet Kit

Installing and using the 12V accessory outlet.

Special Tools - Vice Grip Modification

Argo New Vehicle Limited Warranty

Warranty Period Exceptions

Details warranty exceptions for engines, battery, and tires.

Warranty Voidance Conditions

Conditions that void the vehicle warranty.

Items Not Covered by Warranty

Lists items and damages not covered under the warranty.

Related product manuals

Argo 8x8 Avenger User Manual

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