1984 Honda CB750SC Nighthawk Motorcycle Shop Manual

This manual addresses the CB750SC and CB700SC Nighthawk motorcycle systems, including engine, transmission, and chassis components. Part No. ART NO.-HM 1074

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Document Details

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Document Number / Seller:
29004 / Linda Perez
File Size:
13.99 MB
File Type:
PDF
Language:
English
Pages:
335
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Dec 24, 2025

Models Covered & Key Technical Specifications

1984 Honda CB750SC Nighthawk Motorcycle Shop Manual (ART NO.-HM 1074) - Service Data

CB750SC / CB700SC | Motorcycle Volume. Documented Locking Torques: 47.5 N-m specifies the maximum torque for crankpin bolts. Calibrated Containment Volume: For fuel system components, 16 liters is the standard reserve capacity. Authorized Running Clearance: The crankshaft end play requires 0.07 mm for optimal operation. Maximum Heat Tolerance: The ignition system is configured at 250 rpm for optimal performance. System Weight Data: The engine dry weight is 82 kg, establishing the base operational mass. Principal Threaded Fastener Data: For cylinder head cap nuts, 30 N-m is the specified tightening value.

Professional Workshop Service Manual & Technical Specifications

1984 Honda CB750SC Nighthawk Motorcycle Shop Manual: Reference-Archive

Year-Coverage: 1984 // Technical-Benchmarks: Motorcycle / Engine Logic // Engineering-Metrics: comprehensive repair and maintenance data.

Cataloging major assemblies into distinct sections, this manual provides an in-depth look at the Honda CB750SC Nighthawk. It details the intricate systems that make this motorcycle a classic, from the engine's mechanical heart to the nuances of its transmission and chassis. Thoroughly requiring an understanding of the vehicle's construction, the manual serves as an essential guide for any owner or technician. The integrated module designs are explained with clarity.

Engine and Transmission Systems

Chassis and Electrical Systems

Troubleshooting and Technical Features

Maintenance Schedule and Procedures

Component Diagrams and Specifications

This manual documents torque specifications for engine and transmission components to ensure proper gasket seal integrity.

Metric Baseline Calibration-Spec
Engine Dry Weight 82 kg (181 lb) N/A
Oil Capacity (with filter) 3.0 US qt (2.5 Imp qt) N/A
Fuel Tank Capacity 16 liters (4.2 US gal) N/A
Carburetor Type CV Type, 30.8 mm venturi bore N/A
Spark Plug Gap 0.8–0.9 mm (0.031–0.035 in) N/A
Compression Ratio 9.2:1 N/A
Front Tire Size 110/90–16 59H N/A
Rear Tire Size 130/90–16 67H N/A

The manual delves into the specifics of engine removal and installation, detailing each step with precision. It covers the transmission's internal workings, including shift forks and the shift drum, providing clear instructions for disassembly and reassembly. The final drive, universal joint, and final gear assembly are also thoroughly explained. The crankshaft and starter clutch components are broken down, offering insights into their repair and maintenance. Cylinder head and valve procedures, including overhaul and timing adjustments, are meticulously described. The fuel system, encompassing carburetors, fuel tank, and air cleaner, is detailed for optimal performance. Clutch service, brake system maintenance, and electrical system diagnostics are also integral parts of this comprehensive guide.

FAQ

Specify the **applicable** lubrication requirements for the Honda CB750SC. keyboard_arrow_down

2.8 liters (3.0 US qt, 2.5 Imp qt) is the standard oil capacity for the engine after filter and oil change, with a viscosity of SAE 10W-40 recommended.

What is the **exact** testing parameters for the fuel valve diaphragm test? keyboard_arrow_down

12-20 mm Hg (0.48-0.79 in) is the specified vacuum for the diaphragm test, ensuring proper fuel flow when the engine is stopped.

Calculate the **specific** diagnostic procedures for transmission jumps out of gear. keyboard_arrow_down

Gear dogs worn is one of the primary causes, requiring inspection and potential replacement as outlined in the troubleshooting section.

What values **designated** fluid capacity requirements for the clutch system? keyboard_arrow_down

DOT 3 or 4 brake fluid is used for the hydraulic clutch system; using other types of fluid may not be compatible. Pages 284-335 detail specific procedures.

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The shop manual is incredibly detailed and easy to follow. The download process was smooth, and I received the link promptly via email. Highly recommended for anyone working on their Honda CB750SC!