1979-1983 Honda CB900C / CB900F Service Manual • P/N 07Z20-MR70100, issue date March 1982
Honda Models Covered & Key Technical Specifications
Models: Honda CB900C, Honda CB900F
Sub-models / Variants: Custom, Super Sport, Canada model
Model Years: 1979–1983
Serial Numbers: Beginning with F No. SC04-2000046, F No. SC04-2001669
Technical Data:
- Engine type: Air-cooled 4-stroke, vertical in-line four
- Displacement: 902 cc
- Bore and stroke: 64.5 x 69.0 mm
- Compression ratio: 8.8:1
- Transmission: 5-speed constant-mesh with dual range subtransmission
- Valve train: Chain driven DOHC, 4 valves per cylinder
- Idle speed: 1,000 ± 100 rpm
- Compression pressure: 12 ± 2 kg/cm²
Honda Manual Features & Content Preview
Honda CB900C & CB900F Technical Reference (1979–1983)
This official 367-page Honda OEM reference provides the raw factory data needed to service the SC04-series. Covering the 1979–1983 Custom and Super Sport variants, it includes detailed sections on the unique dual-range subtransmission. Whether you are diagnosing a complex electrical issue or prepping for a complete repair overhaul, this document delivers the exact engine, chassis, and electrical specifications straight from the manufacturer.
Before opening the DOHC four-cylinder powerplant or testing the hydraulic brake circuits, always verify pressure relief protocols and disconnect the main power harness to prevent accidental engagement or component damage.
Manual Highlights & Delivery
- Official Honda Publication: P/N 07Z20-MR70100 (March 1982 issue).
- Instant PDF Download: The file link appears in your order confirmation the second your payment clears.
- Complete Model Coverage: Features comprehensive 1981–1982 addendums for production updates and model-specific tuning parameters.
- Searchable & Indexed: Quickly find the exact chapter you need right from your tablet or laptop.
- Print-Ready: High-resolution page spreads stay crisp and legible if you prefer a hard copy on the bench.
System Breakdowns
This documentation skips the fluff and delivers deep-dive diagnostic values for the entire motorcycle:
- Engine & Drivetrain: Removal procedures, cylinder head breakdowns, and exact engine torque specifications.
- Fuel & Air: Carburetor diagnostics and intake tuning parameters.
- Chassis & Suspension: Wheel alignments, suspension settings, and hydraulic brake maintenance data.
- Electrical: Ignition thresholds, battery standards, and starting system wiring diagrams.
Essential Diagnostic Specs
Forget generic guides. This manual contains the precise thresholds required for professional shop operations. Key highlights include:
- Engine oil capacity: 3.5 liters at fluid change
- Intake valve clearance: 0.06–0.13 mm (documented in the cylinder head tables)
- Spark plug gap: 0.6–0.7 mm
Having the right factory reference materials streamlines the repair process and completely eliminates guesswork from your daily workshop routine.
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