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Honda Nighthawk CB750SC 1984 User Manual

Honda Nighthawk CB750SC 1984
335 pages
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NIGHTHAWK
NIGHTHAWK
CB750SC

Table of Contents

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Honda Nighthawk CB750SC 1984 Specifications

General IconGeneral
Valve TrainDOHC, 4 valves per cylinder
Displacement749 cc
StartingElectric
Transmission5-speed
Final DriveChain
Front SuspensionTelescopic fork
Front BrakeSingle disc
Rear BrakeDrum
Rear Tire130/90-17
Bore x Stroke62.0 mm x 62.0 mm
Rear SuspensionDual shocks

Summary

General Information

General Safety

Essential safety precautions for operating and servicing the motorcycle.

Service Rules

Guidelines and recommendations for performing service and maintenance.

Model Identification

Details on identifying the motorcycle and its key components.

Specifications

Key technical data and measurements for the motorcycle.

Torque Values

Specified torque settings for various bolts and fasteners.

Tools

List of special and common tools required for service.

Cable and Harness Routing

Instructions on proper routing of electrical cables and harnesses.

Emission Control Systems

Information on the motorcycle's emission control systems.

Emission Control Information Label

Details about the emission control information label and its location.

Lubrication

Service Information

General service notes and procedures for lubrication.

Specifications

Lubrication capacities, oil recommendations, and viscosities.

Torque Values

Tightening specifications for lubrication-related components.

Tools

Specialized tools for lubrication system service.

Troubleshooting

Common issues and solutions related to the lubrication system.

Maintenance

Service Information

Overview of maintenance procedures and general service notes.

Specifications

Maintenance-related specifications for engine and chassis.

Engine Maintenance

Specific maintenance tasks and checks for the engine.

Chassis Maintenance

Maintenance procedures for the motorcycle chassis components.

Maintenance Schedule

Scheduled maintenance intervals and required tasks.

Fuel System

Service Information

General information and specifications for the fuel system.

Troubleshooting

Diagnosing and resolving common fuel system problems.

Carburetor Removal

Step-by-step guide for removing the carburetor assembly.

Vacuum Chamber

Procedure for removing and inspecting the vacuum chamber.

Float Chamber

Instructions for removing and adjusting the float chamber.

Choke (Bystarter) Valve

Details on removing and inspecting the choke (bystarter) valve.

Carburetor Separation

Procedure for safely separating the carburetor units.

Carburetor Assembly

Guidance on reassembling the carburetor unit.

Pilot Screw Removal/Installation

Steps for removing and installing the pilot screw.

High Altitude Adjustment

Instructions for adjusting the fuel system for high altitudes.

Fuel Tank

Procedures for removing and testing the fuel tank.

Fuel Strainer Cleaning

How to clean the fuel strainer for optimal performance.

Air Cleaner Case

Procedures for removing and installing the air cleaner case.

Purge Control Valve Inspection

Inspection and testing of the purge control valve.

Engine Removal/Installation

Service Information

General information and specifications for engine removal and installation.

Engine Removal

Detailed steps for safely removing the engine from the frame.

Engine Installation

Procedures for correctly installing the engine back into the frame.

Cylinder Head/Valves

Service Information

Overview of cylinder head and valve service procedures.

Specifications

Key measurements and limits for cylinder head and valve components.

Torque Values

Correct torque specifications for cylinder head fasteners.

Troubleshooting

Common problems related to cylinder head and valves.

Camshaft Removal

Steps for removing the camshaft from the cylinder head.

Hydraulic Tappet Removal

Procedure for removing hydraulic tappets.

Cylinder Head Disassembly

Instructions for disassembling the cylinder head.

Valve Guide Replacement

Guide for replacing valve guides.

Valve Seat Inspection/Refacing

Procedures for inspecting and refacing valve seats.

Cylinder Head Installation

Steps to reinstall the cylinder head.

Camshaft Installation

Procedure for installing the camshaft.

Cylinder/Piston

Service Information

General service information for cylinder and piston components.

Troubleshooting

Common issues and solutions for cylinder and piston problems.

Cylinder Removal

Step-by-step instructions for removing the cylinder.

Piston Removal

Guide for removing pistons from the cylinder.

Piston/Piston Ring Inspection

Inspection of pistons and piston rings for wear or damage.

Piston Ring Installation

Proper procedure for installing piston rings.

Cylinder Installation

Steps for reinstalling the cylinder assembly.

Clutch

Service Information

General service information for the clutch system.

Specifications

Technical specifications for clutch components.

Torque Values

Specified torque settings for clutch hardware.

Troubleshooting

Common clutch system issues and their solutions.

Clutch Fluid Replacement/Air Bleeding

Procedure for replacing clutch fluid and bleeding the system.

Clutch Master Cylinder

Removal, inspection, and assembly of the clutch master cylinder.

Clutch Slave Cylinder

Disassembly and inspection of the clutch slave cylinder.

Clutch Disassembly

Step-by-step guide to disassembling the clutch assembly.

Clutch Assembly

Instructions for reassembling the clutch components.

Gearshift Linkage

Service Information

General information on the gearshift linkage system.

Troubleshooting

Common issues and solutions for the gearshift linkage.

Gear Position Switch Removal

Procedure for removing the gear position switch.

Gearshift Pedal Installation

Instructions for installing the gearshift pedal.

Gearshift Linkage Removal

Steps for removing the gearshift linkage components.

Crankcase

Service Information

General service information for the crankcase.

Torque Values

Correct torque specifications for crankcase fasteners.

Tools

Tools required for crankcase service.

Crankcase Disassembly

Step-by-step instructions for disassembling the crankcase.

Crankcase Assembly

Guidance on reassembling the crankcase.

Transmission

Service Information

General information and specifications for the transmission.

Troubleshooting

Common transmission issues and their solutions.

Shift Forks and Shift Drum

Removal, inspection, and installation of shift forks and drum.

Transmission Disassembly

Detailed steps for disassembling the transmission.

Output Gear Case (Countershaft) Removal

Procedure for removing the output gear case and countershaft.

Countershaft Bearing Replacement

Instructions for replacing countershaft bearings.

Output Driven Gear Installation

Steps for installing the output driven gear.

Output Driven Gear Bearing Replacement

Procedure for replacing output driven gear bearings.

Crankshaft/Starter Clutch

Service Information

General service information for crankshaft and starter clutch.

Troubleshooting

Common problems related to crankshaft and starter clutch.

Starter Clutch/Alternator Shaft

Removal and inspection of starter clutch and alternator shaft.

Connecting Rod/Crankshaft Removal

Steps for removing connecting rods and crankshaft.

Bearing Inspection

Inspection procedures for crankshaft and connecting rod bearings.

Bearing Selection

Guidelines for selecting replacement bearings based on codes.

Crankshaft/Connecting Rod Installation

Procedures for installing crankshaft and connecting rods.

Final Drive

Service Information

General information and specifications for the final drive.

Troubleshooting

Common issues and solutions for the final drive system.

Final Drive Removal

Steps for removing the final drive assembly.

Drive Shaft Disassembly

Procedure for disassembling the drive shaft.

Pinion Bearing Removal

Instructions for removing pinion bearings.

Pinion Retainer Oil Seal Replacement

Procedure for replacing the pinion retainer oil seal.

Case Bearing and Oil Seal Replacement

How to replace case bearings and oil seals.

Pinion Gear Assembly

Steps for assembling the pinion gear.

Ring Gear Assembly

Procedure for assembling the ring gear.

Rear Tooth Contact Pattern Check

Checking the gear tooth contact pattern for proper meshing.

Backlash Inspection

Measuring backlash in the final drive assembly.

Front Wheel/Suspension

Service Information

General service information for front wheel and suspension.

Specifications

Technical specifications for front wheel and suspension components.

Torque Values

Specified torque settings for front wheel and suspension parts.

Troubleshooting

Common issues and solutions for the front wheel and suspension.

Handlebars

Removal and installation procedures for handlebars.

Front Brake Master Cylinder

Procedures for removing and installing the front brake master cylinder.

Front Wheel

Steps for removing and inspecting the front wheel.

Wheel Bearing

Inspection and replacement of wheel bearings.

Wheel Balance

Procedure for balancing the front wheel.

Steering Stem

Removal and installation of the steering stem.

Steering Head Bearing Preload

Adjusting the steering head bearing preload.

Rear Wheel/Suspension/Brake

Service Information

General service information for rear wheel, suspension, and brake.

Specifications

Technical specifications for rear wheel, suspension, and brake.

Torque Values

Specified torque settings for rear wheel, suspension, and brake.

Troubleshooting

Common issues and solutions for rear wheel, suspension, and brake.

Rear Wheel

Steps for removing and inspecting the rear wheel.

Axle Inspection

Inspection of the rear axle and its runout.

Wheel Bearings

Inspection and replacement of rear wheel bearings.

Disassembly

Procedures for disassembling rear wheel components.

Rear Brake

Removal and inspection of rear brake components.

Brake Drum Inspection

Inspection of the rear brake drum for wear or damage.

Lining Thickness Inspection

Measuring the thickness of the rear brake lining.

Shock Absorber

Removal, disassembly, and assembly of the shock absorber.

Swing Arm

Removal and replacement of swing arm components.

Hydraulic Brake

Service Information

General service information for the hydraulic brake system.

Troubleshooting

Common hydraulic brake system issues and solutions.

Brake Fluid Replacement/Air Bleeding

Procedure for replacing brake fluid and bleeding the system.

Brake Pad/Disc Replacement

Steps for replacing brake pads and discs.

Master Cylinder

Removal, inspection, and assembly of the master cylinder.

Brake Calipers

Procedures for removing, disassembling, and assembling brake calipers.

Muffler/Rear Fender

Service Information

General service information for muffler and rear fender.

Torque Values

Specified torque settings for muffler and rear fender fasteners.

Muffler

Removal and installation of the exhaust muffler.

Rear Fender

Procedures for removing and installing the rear fender.

Battery/Charging System

Service Information

General service information for the battery and charging system.

Specifications

Specifications for the battery and alternator.

Troubleshooting

Common battery and charging system issues and solutions.

Battery

Procedures for removing, testing, and charging the battery.

Charging System

Tests and procedures for the motorcycle's charging system.

Alternator

Removal, inspection, and assembly of the alternator.

Voltage Regulator/Rectifier Test

Testing the voltage regulator/rectifier for proper function.

Ignition System

Service Information

General service information for the ignition system.

Troubleshooting

Common ignition system problems and their solutions.

Ignition Coil

Continuity testing and replacement of ignition coils.

Transistorized Ignition System

Testing and replacing components of the transistorized ignition system.

Electric Starter

Service Information

General service information for the electric starter system.

Troubleshooting

Common starter system issues and solutions.

Starter Motor

Removal, inspection, and assembly of the starter motor.

Starter Relay Switch

Inspection of the starter relay switch.

Clutch Diode

Procedure for removing and inspecting the clutch diode.

Lights/Instruments/Switches

Service Information

General service information for lights, instruments, and switches.

Headlight

Bulb replacement and headlight removal/installation.

Instruments

Removal, disassembly, and assembly of instrument cluster.

Ignition Switch

Procedures for removing, installing, and testing the ignition switch.

Oil Pressure Warning System

Inspection and replacement of the oil pressure warning system.

Brake Light Switches

Testing and replacement of front and rear brake light switches.

Gear Position Switch

Checking continuity for the gear position switch.

Clutch Switch

Testing continuity of the clutch switch.

Handlebar Switches

Checking continuity of various handlebar-mounted switches.

Fuel Sensor/Meter

Inspection and testing of the fuel sensor and fuel meter.

Tachometer

Inspection and troubleshooting of the tachometer.

Tail Light Sensor

Testing the tail light sensor for proper operation.

Turn Signal

Bulb replacement for turn signals.

Tail/Brake Light

Bulb replacement for tail and brake lights.

License Light

Bulb replacement for the license plate light.

Wiring Diagram

Technical Features

Hydraulic Tappets

Explanation of the hydraulic tappet system's operation.

New TRAC Front Suspension

Description of the torque-reactive anti-dive front suspension system.

Troubleshooting

Engine Does Not Start or is Hard to Start

Diagnosing and resolving starting issues.

Engine Lacks Power

Troubleshooting steps for reduced engine power.

Poor Performance at Low and Idle Speed

Addressing performance issues at low speeds and idle.

Poor Performance at High Speed

Diagnosing and fixing performance problems at high speeds.

Hydraulic Tappet Noise

Identifying and resolving noise issues with hydraulic tappets.

Poor Handling

Troubleshooting common motorcycle handling problems.

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