Suzuki LT80K Quad Runner 1989 Service Repair Workshop Manual

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UGS: 91153

Mots clés: 1989 Atv LT80K Quad Runner Misc Motorcycles Suzuki

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Description

This manual covers the 1989 Suzuki LT80K Quad Runner, a robust and user-friendly entry-level ATV designed for youth riders and beginner enthusiasts. Known for its durability, simplicity, and excellent maneuverability, the LT80K offers a reliable platform for recreational off-road exploration. Its compact size and lightweight construction make it easy to handle, while features like an adjustable throttle limiter and integrated footwells enhance rider safety and control. The vehicle's two-stroke, air-cooled 72cc engine provides consistent power for its intended purpose, supported by an automatic transmission for ease of operation. This comprehensive service repair workshop manual provides detailed information for the full service and repair of the 1989 Suzuki LT80K Quad Runner. It covers essential maintenance procedures, troubleshooting, diagnostics, and reassembly across all major systems, including the engine, fuel system, transmission, drivetrain, suspension, brakes, steering, and electrical components. With detailed instructions for engine overhauls, carburetor tuning, and component replacement, this manual serves as an indispensable resource for owners, mechanics, and technicians seeking to maintain, repair, and optimize the performance and longevity of their LT80K.

🏷️ Basic Information

Identification

Make:

Suzuki

Model:

LT80K Quad Runner

Year:

Codes

Chassis Code:

LT80K

Engine Code:

👋 Introduction

Market Position

Segment:

Entry-level youth ATV, recreational off-road vehicle

Target Audience:

Youth riders, beginner ATV enthusiasts, families

Competitive Analysis

Competitors:

Honda TRX70/80, Yamaha YFM80 Badger, Kawasaki Mojave 80

Key Features

Durability:

Known for robust construction and reliability for its class.

Simplicity:

Easy to operate and maintain, making it ideal for younger riders.

Maneuverability:

Compact size and light weight contribute to excellent handling.

📋 Manual Details

Coverage Areas

Primary Coverage:

Full Service and Repair

Additional Coverage:

Maintenance, Troubleshooting, Diagnostics, Reassembly

Page Count

Estimated Pages:

Approximately 200-300 (typical for a comprehensive service manual of this era)

Manual Type

Type:

Service Repair Workshop Manual

Language

Language:

English

Format

Format:

Digital (likely PDF, common for workshop manuals)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Full engine disassembly, inspection, overhaul, and reassembly, including cylinder, piston, rings, crankshaft, connecting rod, and valve train.

Engine Fuel System:

Carburetor disassembly, adjustment, cleaning, and troubleshooting; fuel tank and lines.

Engine Lubrication:

Oil pump, oil passages, and lubrication system maintenance.

Cooling System:

Air cooling system specifics, cooling fins, and related components.

Ignition System:

CDI ignition system, spark plug, ignition coil, stator, and troubleshooting.

Exhaust System:

Muffler, exhaust pipe inspection and maintenance.

Transmission:

Automatic transmission (CVT/Torque Converter) inspection, maintenance, and internal component service.

Drivetrain:

Drive chain, sprockets, and rear axle maintenance and adjustment.

Suspension System:

Front and rear suspension components, shock absorbers, bushings, and linkages.

Brake System:

Drum brake systems (front and rear), brake shoes, drums, cables, and adjustment.

Steering System:

Handlebars, steering column, tie rods, and front wheel alignment.

Electrical System:

Wiring diagrams, lighting (headlight, taillight), battery, fuses, and switches.

Bodywork And Chassis:

Frame, plastic body panels, seat, fenders, and trim.

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, chain lubrication and adjustment, brake adjustment, spark plug replacement.

Troubleshooting Diagnostics:

Step-by-step diagnostic procedures for common issues, symptom-based troubleshooting charts.

Engine Overhaul:

Complete engine rebuild procedures, including torque specifications, clearances, and component replacement.

Carburetor Tuning:

Detailed instructions for carburetor cleaning, rebuilding, and air/fuel mixture adjustment.

Brake Service:

Brake shoe replacement, drum inspection, and cable adjustment procedures.

Electrical Repairs:

Wiring diagram interpretation, component testing, and repair of electrical faults.

Suspension Repair:

Shock absorber replacement, bushing service, and alignment checks.

Component Replacement:

Step-by-step guides for replacing major components like crankshaft, piston, carburetor, and transmission parts.

Technical Depth

Depth:

Comprehensive, covering from basic owner maintenance to complete mechanical overhauls, suitable for professional mechanics and experienced DIY enthusiasts.

📊 Manual Specifications

File Format

Format:

PDF (Portable Document Format)

Searchability:

Text-searchable for quick information retrieval

Printability:

Printable for physical use in a workshop environment

Print Quality

Quality:

High-resolution scans/digital creation, ensuring clarity of text and diagrams

Binding Type

Binding Type:

N/A (Digital Format)

Paper Type

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Two-stroke, single-cylinder, air-cooled

Displacement:

72 cc (4.4 cubic inches)

Bore X Stroke:

47.0 mm x 42.0 mm

Compression Ratio:

6.5:1

Valve Mechanism:

Reed valve intake

Performance

Horsepower:

Approximately 6.5 HP @ 6000 RPM (estimated for model year)

Torque:

Approximately 5.3 lb-ft @ 5000 RPM (estimated for model year)

Fuel System

Carburetor Model:

Mikuni VM17SS (typical)

Fuel Type:

Unleaded gasoline

Fuel Mixture:

Pre-mix (typically 50:1 ratio of gasoline to 2-stroke oil)

Fuel Tank Capacity:

2.0 L (0.5 US gal)

Lubrication

Oil Type:

Suzuki CCI (Cylinder Cooling Injection) oil or equivalent API-TC rated 2-stroke oil

Oil Capacity:

0.7 L (0.7 US qt) for transmission oil

🔧 Transmission

Standard

Type:

Automatic (Suzuki PAIR - Planetary Automatic Ignition Transmission)

Gear Selection:

Forward, Neutral, Reverse (select lever)

Clutch Type:

Automatic centrifugal clutch

Optional

Options:

N/A (Single transmission configuration for this model)

Features

Final Drive:

O-ring sealed drive chain

Transmission Oil:

API GL-4 Gear Oil SAE 80W-90

📐 Dimensions

Exterior

Overall Length:

1,470 mm (57.9 in)

Overall Width:

910 mm (35.8 in)

Overall Height:

925 mm (36.4 in)

Wheelbase:

1,010 mm (39.8 in)

Ground Clearance:

115 mm (4.5 in)

Weights

Dry Weight:

67 kg (147.7 lbs)

Gross Vehicle Weight Rating:

167 kg (368 lbs) - includes rider and cargo

Wheels Tires

Front Tire Size:

AT16 x 7-7

Rear Tire Size:

AT18 x 9.5-8

Front Wheel Offset:

N/A (typically steel stampings)

Rear Wheel Offset:

N/A (typically steel stampings)

🛡️ Safety Features

Ratings

Safety Standards:

Designed for youth use; adheres to industry standards for ATVs of its time. Always follow recommended safety guidelines.

Active Features

Throttle Limiter:

Adjustable throttle limiter screw for parental control of speed.

Parking Brake:

Manual parking brake lever (often on handlebars or near the gear selector).

Passive Features

Footwells:

Integrated floorboards/footwells for rider foot protection.

Engine Stop Switch:

Handlebar-mounted engine kill switch for quick shutdown.

Lighting:

Headlight and taillight for visibility.

💡 Technology Features

Infotainment

Infotainment System:

N/A (Basic recreational vehicle, no integrated infotainment)

Driver Assistance

Assistance Features:

Throttle limiter for speed control.

Connectivity

Connectivity Features:

🔧 Maintenance

Service Intervals

Engine Oil Change:

Every 20 hours of operation or annually, whichever comes first (refer to manual for exact spec).

Transmission Oil Change:

Every 50 hours of operation or annually (refer to manual for exact spec).

Air Filter Cleaning:

Every 10 hours of operation or as needed based on conditions.

Spark Plug Check Gap:

Every 20 hours of operation or annually.

Drive Chain Lubrication:

Every 10 hours of operation or after riding in wet conditions.

Brake Adjustment:

As needed, typically every 20-40 hours of operation.

Fluid Specifications

Engine Oil Type:

Suzuki CCI 2-stroke oil or equivalent API-TC rated oil

Transmission Oil Type:

API GL-4 Gear Oil SAE 80W-90

Spark Plug Type:

NGK BR8ES or equivalent

Spark Plug Gap:

0.7 - 0.8 mm (0.028 - 0.031 in)

Known Issues

Carburetor Fouling:

Common issue due to ethanol in fuel or improper pre-mix ratios, leading to hard starting or poor idling.

Drive Chain Wear:

Can stretch and wear prematurely if not properly maintained and adjusted.

Plastic Component Brittleness:

Older plastic parts can become brittle over time, especially in cold conditions.

Brake Shoe Adjustment:

Rear drum brakes can require frequent adjustment to maintain effective stopping power.

📚 Vehicle History

Brand Heritage

Suzuki History:

Suzuki has a long history of producing reliable and innovative motorcycles and ATVs, known for their engineering and performance.

Model Evolution

Lt80 Lineage:

The LT80 Quad Runner was a popular entry-level model in Suzuki's ATV lineup, designed for younger riders and introduced in the mid-1980s, evolving through various iterations including this 1989 model.

Production

Production Years:

The LT80 was produced for many years, with the LT80K designation typically referring to a specific production year range, including 1989.

Manufacturing Location:

Likely manufactured in Japan or other Suzuki production facilities.

🏆 Awards & Recognition

Recognitions

Industry Recognition:

While specific awards for the LT80K in 1989 are not widely documented, Suzuki's ATVs have consistently been recognized for their build quality and performance in the recreational segment.

Ratings

Consumer Ratings:

Generally well-regarded for its durability and suitability as a first ATV.