1985 Suzuki GSX-R400 GK71B Motorcycle Service & Repair Manual-PDF

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Art.-Nr: 136282

Stichworte: 1985 GK71B GSX Series GSX-R400 Motorcycle Motorcycles Suzuki

Produktvarianten

Beschreibung

The 1985 Suzuki GSX-R400 (GK71B) represents a significant early entry in Suzuki's renowned GSX-R lineage, a series celebrated for its race-bred performance and lightweight sportbike design. This model, primarily targeted for the Japanese domestic market, offered a compelling blend of manageability and performance within the competitive 400cc sportbike segment. Its inline-four, water-cooled engine, coupled with a 6-speed transmission and wet, multi-plate clutch, established the foundation for the GSX-R's enduring reputation. This comprehensive service and repair manual is designed to assist both do-it-yourself enthusiasts and professional mechanics in maintaining and repairing the 1985 Suzuki GSX-R400. It covers all essential systems, including detailed procedures for engine tear-down and rebuild, fuel and lubrication systems, transmission, chassis, electrical components, braking, and suspension. The manual provides in-depth guidance, featuring hundreds of illustrations, exploded diagrams, wiring schematics, and precise torque specifications, ensuring accurate and efficient service for all maintenance, repair, and restoration tasks.

🏷️ Basic Information

Identification

Make:

Suzuki

Model:

GSX-R400

Model Code:

GK71B

Production Year:

👋 Introduction

Market Position

Target Audience:

Do-it-yourself enthusiasts and experienced mechanics seeking detailed repair and maintenance information for the 1985 Suzuki GSX-R400 GK71B.

Key Features

Value Proposition:

Provides comprehensive, official factory repair data to enable cost-effective maintenance, refurbishment, and restoration of the motorcycle.

Content Highlight:

Includes detailed illustrations, exploded diagrams, wiring schematics, torque specifications, and step-by-step instructions for all major repair and maintenance tasks.

Competitive Analysis

Market Context:

Competed in the highly popular Japanese 400cc sportbike segment, offering a balance of performance and manageability.

📋 Manual Details

Coverage Areas

Manual Type:

Official Service & Repair Manual

Language:

English

Format:

Page Count:

📖 Manual Coverage

Systems Covered

Engine:

Complete tear down and rebuild, fuel system, lubrication, cooling, combustion, cylinder head, valves, crankcase, piston, cylinder, crankshaft, balancer

Transmission:

Gearbox, clutch, transmission system, gear ratios

Chassis:

Front wheel, steering system, rear wheel system, frame, body panels, exhaust system

Electrical:

Alternator, starter clutch, battery, charging system, ignition system, electric starter, lights, meters, switches, wiring diagrams

Braking:

Braking system

Suspension:

Suspension, front fork, rear shock absorber

Fuel System:

Fuel injection system, carburetors (if applicable, though description mentions injection), fuel tank, fuel lines

Bodywork:

Body panels, fairings, seat, fenders, exhaust system

Wheels And Tires:

Front and rear wheel systems, tire replacement, balancing

Cooling System:

Radiator, cooling fan, coolant hoses, thermostat, water pump.

Lubrication System:

Oil pump, oil filter, oil passages, oil cooler (if equipped).

Combustion System:

Ignition timing, spark plugs, compression testing.

Body And Fixtures:

Seat removal, fuel tank mounting, fairing installation/removal, headlight/taillight assembly.

Frame Body Panels Exhaust System:

Frame inspection, body panel alignment, exhaust system mounting and removal.

Wheels And Tyres:

Wheel bearing inspection and replacement, tire mounting and dismounting, spoke tension (if applicable).

Battery Charging System:

Battery testing, charging system output (alternator and regulator/rectifier).

Ignition System:

CDI unit, ignition coils, pickup coils, timing adjustment.

Electric Starter:

Starter motor, starter solenoid, starter clutch inspection and repair.

Lights Meters Switches:

Headlight aiming, taillight bulb replacement, instrument cluster diagnostics, switch operation checks.

Wiring Diagrams:

Comprehensive wiring schematics for all electrical circuits.

Procedures Included

Maintenance:

Periodic checks, adjustments, fluid changes, lubrication

Repair:

Complete tear down and rebuild, component-specific repairs, troubleshooting

Diagnostics:

Troubleshooting, diagnostic procedures

Installation:

Engine installation and removal, component installation and removal procedures.

Restoration:

Detailed guidance for refurbishment and restoration of all major motorcycle components.

Technical Depth

Depth:

Comprehensive: from basic maintenance to complete engine rebuilds and electrical system diagnostics.

Diagrams:

Hundreds of detailed illustrations, exploded diagrams, and drawings.

Specifications:

Precise torque specifications for all fasteners and critical components.

📊 Manual Specifications

File Format

File Format:

Searchable:

Bookmarking:

Print Quality

Printable:

Yes (all pages)

Zoom Capability:

Binding Type

Binding:

Digital Download (PDF)

Paper Type

Paper Type:

Not Applicable (Digital)

Compatibility

Operating Systems:

All versions of Windows and Mac

Requirements

Software Requirements:

Adobe PDF Reader, WinZip

⚙️ Engine Specifications

Primary Engine

Engine Type:

Inline-four cylinder, DOHC, 4-stroke, water-cooled

Performance

Displacement:

398 cc

Horsepower:

Refer to manual for specific output (typically around 50-55 PS for JDM models).

Torque:

Refer to manual for specific output.

Fuel System

Fuel Delivery:

Fuel Injection (as indicated by description's 'Fuel Injection System' section)

Lubrication System

Type:

Forced lubrication, wet sump

Cooling System

Type:

Water-cooled

🔧 Transmission

Standard

Type:

6-speed constant mesh

Features

Clutch Type:

Wet, multi-plate

📐 Dimensions

Exterior

Wheelbase:

Refer to manual for specific length

Weights

Dry Weight:

Approx. 170 kg (dry)

💡 Technology Features

Infotainment

Features:

Basic instrument cluster: speedometer, tachometer, odometer, fuel gauge, indicator lights. No modern infotainment features.

Driver Assistance

Features:

No electronic rider aids or driver assistance systems.

🔧 Maintenance

Service Intervals

Oil Change:

Refer to manual for specific intervals (typically 3,000-5,000 km or 6-12 months).

Valve Adjustment:

Refer to manual for specific intervals (e.g., 6,000 km or annual checks).

Fluid Specifications

Engine Oil Type:

Refer to manual (typically SAE 10W-40 or 20W-50 API SG or higher).

Coolant Type:

Refer to manual (typically ethylene glycol-based antifreeze/coolant).

Known Issues

Common Wear Items:

Refer to manual for specific troubleshooting of common wear items such as brakes, suspension seals, and electrical connectors.

Technical Data

Spark Plug Type:

Refer to manual for specific NGK or Denso part numbers (e.g., NGK CR9E or similar).

Tire Pressure:

Refer to manual for front and rear tire pressure specifications.

Chain Lubrication:

Refer to manual for recommended chain lubricant and cleaning procedures.

Brake Fluid Type:

Refer to manual (typically DOT 3 or DOT 4).

📚 Vehicle History

Brand Heritage

Heritage:

Suzuki has a long history of producing performance-oriented motorcycles, with the GSX-R line representing a significant step into the sportbike category.

Model Evolution

Gsx-R Line:

The GSX-R400 GK71B was an early iteration in the iconic GSX-R series, establishing the lineage known for its race-bred performance and lightweight design.

Production

Market Focus:

Primarily targeted at Japanese domestic market (JDM) regulations for 400cc displacement sportbikes.