1978–1984 Honda CB750 & CB900 DOHC Fours Repair Manual

Comprehensive Owners Workshop Manual for Honda CB750 & CB900 DOHC Fours (1978-1984) covering routine maintenance, engine, electrical, and more. Ref: Haynes CB750

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Honda Models Covered & Key Technical Specifications

Models: Honda CB750, Honda CB900
Sub-models / Variants: K, F, C, F2, SC, LTD, Nighthawk, 2WD, 4WD (note: model variants include K, F, C, F2, SC, LTD, Nighthawk)
Trade Names: CB750, CB900, DOHC Fours, Superbike, Nighthawk
Build Years: 1978–1984
Serial Numbers: RC01E-2000040–2000042, SC01E-2000001–2113813, RC01E-2200046–2200028, SC01E-2200046–2200028, RC04E-2200070–2200154, RC04E-2300508–SC09-4000424, RC04E-2400018–2400001, RC01E-3000001–3000840, RC04E-2000023–2000023, RC04E-2100040–2200040, RC04E-2200008–2200079, RC04E-2300003–CM030003, RC10E-2308884–CM030019
Technical Data:

  • Engine: Four-cylinder DOHC four-stroke
  • Displacement: 749 cc (45.67 cu in) and 901 cc (54.91 cu in)
  • Compression Ratio: 9.0:1 (750), 8.8:1 (900)
  • Valve Clearance (intake/exhaust): 0.06–0.13 mm (0.002–0.005 in)
  • Transmission: 5-speed wet multiplate clutch
  • Final Drive: Chain
  • Ignition Type: Capacitor Discharge Ignition (CDI)
  • Electrical System: 12V 14Ah Yuasa battery, 260W alternator
  • Cylinder Head Bolt Torque: 3.6–4.0 kgf m
Technical Specifications
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Document Number / Seller:
26790 / Richard Wilson
File Size:
53.52 MB
File Type:
PDF
Language:
English
Pages:
151
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Jan 30, 2025

Honda Manual Features & Content Preview

1978–1984 Honda CB750 & CB900 DOHC Fours Technical Documentation

  • Covers 1978–1984 Honda CB750 and CB900 DOHC Fours, including the K, F, C, F2, SC, LTD, and Nighthawk sub-models
  • Haynes publication ISBN 1 85010 217 1, published in 1993
  • Includes 151 pages of technical specifications, maintenance schedules, and engine assembly data
  • Downloads to your account within seconds of checkout
  • Your order stays downloadable from your account for life
  • Laid out for standard letter and A4 printing
  • Full-text search finds any part number in seconds
  • This Haynes 1993 edition is the primary reference for the complete 1978–1984 Honda CB750 and CB900 DOHC Fours series lineup

Engine and Chassis Walkthrough

The 1978–1984 Honda CB750 and CB900 DOHC Fours owners workshop manual provides comprehensive documentation for maintaining the air-cooled, four-cylinder double overhead camshaft engine. Chapters detail the complete removal and reassembly of the engine/gearbox unit, including valve timing, camshaft alignment, and primary chain maintenance. Further sections provide what an OEM service publication covers regarding frame maintenance, fork assembly, and steering head adjustments.

Technical Data Preview

The 1978–1984 Honda CB750 and CB900 DOHC Fours specifications section documents tightening torque values, electrical reference points, and internal clearances. Engine mounting bolts are specified at 2.1–2.5 kgf m. Caliper bracket attachments are documented at 3.0–4.0 kgf m for secure mounting. Valve clearance for the intake and exhaust is listed at 0.06–0.13 mm. Cooling system and lubricant specifications are included for both the 750 cc and 900 cc variants, along with wiring schematics for various market-specific configurations.

Note: This page is a contents overview for the manual. It does not provide repair or diagnostic instructions. This official workshop documentation is designed for owners of the 1978–1984 Honda CB750 and CB900 DOHC Fours, covering extensive technical data, assembly sequences, and electrical specifications for the entire production range of these classic motorcycles.

Manual FAQ, Purchase & Download Details

Can you preview which specific CB750 and CB900 model variants from 1978 to 1984 are included in this manual? keyboard_arrow_down

Document contains coverage for the CB750 K, F, F2, C, and SC, as well as the CB900 F and F2 models introduced between 1978 and 1984. This section of the manual lists these specific submodels to help determine their inclusion in the service data.

Which objective document details, such as publication information or page count, help identify this specific manual? keyboard_arrow_down

Document is the official Honda 750 & 900 DOHC Fours Owners Workshop Manual by Pete Shoemark, which contains 151 pages and holds ISBN 1 85010 217 1.

What kind of chapter content is organized within the manual regarding engine and transmission systems? keyboard_arrow_down

Chapter 1 covers the engine, clutch, and gearbox with dedicated sub-sections for components like the cylinder head, camshafts, and crankshaft assembly. The manual also provides detailed specification tables for engine dimensions, bore and stroke data, and compression ratios.

Does this manual contain consolidated tables for fluid capacities and recommended lubricant types? keyboard_arrow_down

Manual includes a Quick Glance section that lists engine and transmission oil capacity specifications, along with recommended lubricants for various ambient temperature ranges.

Are specification tables and technical reference values like valve clearances and tightening specs available for reference? keyboard_arrow_down

Manual features comprehensive specification tables that list technical reference values, including valve clearance parameters for inlet and exhaust valves. Additionally, the document contains tightening torque specifications for engine mounting bolts and various internal fasteners. These sections serve as a technical reference for identifying standard clearances and torque requirements throughout the engine components.

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