TRX70 Service Manual Repair 1986-1987 TRX 70

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This manual covers the TRX 70 FourTrax, produced for the 1986 and 1987 model years. Designed as an entry-level to mid-range recreational all-terrain vehicle, the TRX 70 is recognized for...

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Typ: Atv

Anbieter:

Art.-Nr: 119977

Stichworte: 1986 1987 ATC Series Atv Honda Motorcycles TRX 70

Produktvarianten

Beschreibung

This manual covers the TRX 70 FourTrax, produced for the 1986 and 1987 model years. Designed as an entry-level to mid-range recreational all-terrain vehicle, the TRX 70 is recognized for its compact size, lightweight construction, and user-friendly operation, making it suitable for younger riders or casual trail use. Its engineering emphasizes reliability and simplicity, characteristic of an established reputation in the powersports industry. The vehicle features a kick-start ignition, an air-cooled engine, and an automatic transmission with reverse, providing an accessible and enjoyable off-road experience. This comprehensive service manual provides detailed information essential for the maintenance and repair of your TRX 70 ATV. It covers a wide array of systems, including complete engine tear-down and rebuild procedures, drivetrain components, chassis elements, and electrical systems. Within its pages, you will find guidance on scheduled maintenance, fluid specifications, troubleshooting common issues, and step-by-step repair instructions for all major components. This manual is an invaluable resource for owners and technicians alike, enabling them to ensure the optimal performance and longevity of the vehicle through accurate and detailed technical guidance.

🏷️ Basic Information

Identification

Make:

Honda

Model:

TRX 70

Product Name:

TRX70 Service Manual Repair 1986-1987 TRX 70

Model Variant:

FourTrax

Codes

Chassis Code Range:

Not explicitly stated, but inferred from model years

Engine Code Range:

Not explicitly stated, but specific to TRX70 engine

👋 Introduction

Market Position

Market Position:

Entry-level to mid-range recreational ATV for younger riders or casual use in the mid-1980s.

Competitive Analysis

Competitive Landscape:

Competed with other smaller displacement ATVs from brands like Yamaha, Suzuki, and Kawasaki, offering a reliable and user-friendly platform.

Key Features

Key Features:

Compact size, lightweight, user-friendly operation, kick-start ignition, air-cooled engine, simple drivetrain.

Manual Value Proposition

Manual Value Proposition:

Provides comprehensive DIY repair and maintenance information, enabling owners to keep their vintage TRX 70 in optimal working condition, saving on professional labor costs.

📋 Manual Details

Coverage Areas

Coverage Years:

1986, 1987

Coverage Models:

Honda TRX 70 ATV

Page Count

Page Count:

158 pages

Manual Type

Manual Type:

Service Manual / Repair Manual

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine Systems:

Complete engine tear down and rebuild, carburettor, ignition system (magneto, stator, coil, spark plug), fuel system (fuel pump, fuel lines, mixture screw, pilot jet, main jet), lubrication system, exhaust system, cooling system (if applicable for air-cooled)

Drivetrain Systems:

Clutch, primary reduction gear, transmission, gearshift mechanism, drive shaft/chain (if applicable), rear axle, linkage

Chassis Systems:

Frame, suspension (front forks, rear swingarm, shocks/struts), steering (handlebars, trees, triple trees), braking system (front and rear brakes, brake lines, rotors, pads), wheels, tires

Electrical Systems:

Starting system (kickstart, starter motor if applicable), charging system (rectifier, regulator), lighting system (headlight, taillight), switches (ignition, brake light switch)

Bodywork And Plastics:

Fenders, body panels, seat, handlebars

Procedures Included

Diagnostic Procedures:

Troubleshooting, no spark issues, error code interpretation (if applicable)

Maintenance Procedures:

Scheduled maintenance, lubrication, fluid changes (engine oil, coolant if applicable), tire pressure adjustment, battery maintenance, spark plug replacement

Repair Procedures:

Complete engine rebuild, carburetor overhaul, transmission repair, suspension servicing, brake system overhaul, electrical component replacement, body panel repair/replacement

Installation Procedures:

Component installation, accessory installation (implied)

Technical Depth

Technical Depth:

Comprehensive (complete tear down and rebuild), detailed diagrams, torque specifications, fluid specifications, maintenance schedules

📊 Manual Specifications

File Format

File Format:

Searchability:

Searchable text

Print Quality:

Printable without restrictions

Save Options:

Savable and burnable to disc without restrictions

Binding Type

Binding Type:

Digital Download (PDF)

Paper Type

Paper Type:

N/A (Digital)

Navigation

Navigation Features:

Clickable chapters

⚙️ Engine Specifications

Primary Engine

Engine Type:

Four-stroke, air-cooled, single-cylinder

Displacement:

69 cc (approximately)

Bore X Stroke:

Specifications likely detailed within the manual (e.g., 44.0 x 45.0 mm)

Compression Ratio:

Specifications likely detailed within the manual

Performance

Horsepower:

Specifications likely detailed within the manual (estimated 4-6 HP)

Torque:

Specifications likely detailed within the manual

Fuel System

Carburetor Type:

Single carburetor (likely Keihin or similar)

Fuel Type:

Unleaded gasoline

Ignition System

Ignition Type:

CDI (Capacitor Discharge Ignition) with magneto

Lubrication

Oil Type:

Typically SAE 10W-30 or 20W-40 for air-cooled engines of this era. Manual will specify exact viscosity and type.

Oil Capacity:

Specifications likely detailed within the manual

🔧 Transmission

Standard

Transmission Type:

Automatic (CVT - Continuously Variable Transmission) with Reverse

Drive Type:

2x4 (Rear Wheel Drive)

Features

Clutch Type:

Automatic centrifugal clutch

Transmission Fluid:

Specifications likely detailed within the manual (often a specific ATF or gear oil)

📐 Dimensions

Exterior

Length:

Specifications likely detailed within the manual

Width:

Specifications likely detailed within the manual

Weights

Dry Weight:

Specifications likely detailed within the manual (typically under 250 lbs for this class)

Tires

Front Tire Size:

Specifications likely detailed within the manual (e.g., AT18 x 7-8)

Rear Tire Size:

Specifications likely detailed within the manual (e.g., AT18 x 9-8)

Tire Pressure:

Specifications likely detailed within the manual (PSI)

🛡️ Safety Features

Passive Features

Frame Construction:

Steel frame, designed for stability

Handlebars:

Standard ATV handlebars for control

Active Features

Braking System:

Drum brakes (likely front and rear), controlled by handlebar levers and possibly a foot brake.

Lighting:

Headlight and taillight for visibility.

💡 Technology Features

Infotainment

Infotainment Features:

N/A (Basic utility vehicle, no infotainment system)

Driver Assistance

Driver Assistance Features:

N/A (Basic utility vehicle, no electronic driver assistance systems)

Ignition Technology

Ignition Technology:

Kickstart primary, CDI ignition system.

Transmission Technology

Transmission Technology:

Automatic CVT transmission with reverse.

🔧 Maintenance

Service Intervals

Engine Oil Change Interval:

Typically every 100 hours or annually, detailed in manual.

Air Filter Cleaning:

Recommended at regular intervals, especially in dusty conditions, detailed in manual.

Spark Plug Check And Replacement:

As per manual schedule, crucial for starting and performance.

Brake Maintenance:

Regular inspection of pads and lines, adjustment as needed.

Fluid Specifications

Engine Oil Specification:

Manual to specify exact SAE viscosity and API classification. Likely a multi-grade oil for air-cooled engines.

Transmission Fluid Specification:

Manual will detail the required fluid type and capacity for the automatic transmission.

Known Issues

Common Issues:

Carburetor gumming due to fuel degradation, clutch wear, electrical connection corrosion, kickstart mechanism issues, suspension wear.

Troubleshooting Focus:

Manual addresses common problems like starting issues, poor running, and loss of power.

📚 Vehicle History

Brand Heritage

Brand Heritage:

Honda has a long-standing reputation for reliability and innovation in the powersports industry, including its early entries into the ATV market.

Model Evolution

Model Evolution:

The TRX 70 was part of Honda's initial wave of popular FourTrax ATVs, aimed at providing accessible off-road recreation.

Production

Production Period:

1986-1987 model years

Original Market Focus:

Youth and entry-level riders, recreational trail riding.

🏆 Awards & Recognition

Recognitions

Recognitions:

N/A (Specific awards for this model are unlikely to be widely documented, but Honda's ATV line generally received positive reviews for reliability and usability).