1979–1980 Honda CBX1050/1000 Shop Manual (P/N 61MA200)

• Two English-language Honda CBX shop manuals covering 1979–1982, totaling 631 PDF pages: a 307-page 1979–1980 manual (6142202) and a 324-page 1981–1982 manual (61MA200), including the ’80 and ’82 addenda.
• Covers DOHC four-valve cylinder-head repair, valve-guide and seat work, camshaft timing, and cylinder/piston inspection, with a Valve Shim Selection Chart for adjustment work.
• Details six-carburetor overhaul and synchronization, including rack separation, accelerator-pump service, air-cutoff valve checks, and fuel-line diaphragm testing on applicable models.
• Documents wet multi-plate clutch service, five-speed transmission overhaul, and crankshaft, primary-shaft, and starter-clutch repair.
• Includes fork and steering-head service, swingarm and rear-suspension work, plus hydraulic brake diagnosis, master-cylinder/caliper rebuilding, and bleeding.
• Supports electrical fault tracing with transistorized ignition tests, charging-system checks, starter-motor service, wiring diagrams, and Cable & Harness Routing drawings.

Technical Documentation

Organized into twenty-two sections apiece, these manuals cover the air-cooled, vertical parallel six-cylinder CBX from scheduled inspection through internal engine and chassis repair. The engine chapters distinguish work possible with the engine installed, work requiring it to be tilted forward in the frame, and jobs requiring complete removal.

Lower-end coverage includes crankcase separation, shift-drum and fork inspection, and bearing selection using color codes and Plastigauge clearance checks. The earlier manual separates primary-shaft assembly instructions for engines through CB1E-2020728 and from CB1E-2020729, addressing the revised indexing and collet-ring-nut arrangement.

The top-end cautions flag a costly repair trap: incorrect tachometer-drive handling during camshaft work can break the No. 4 camshaft holder and require cylinder-head assembly replacement.

Lubrication coverage follows the dual-pump system and oil cooler. The Engine Lubrication Diagram accompanies oil-pressure testing, pump-rotor inspection, and relief-valve service.

Carburetor Identification and Calibration

Fuel-system information distinguishes VB60A carburetors for 1979, VB62A for 1980, and VB64A for 1981–1982. The rack overhaul material covers separation into two banks of three and the associated throttle and choke linkages.

Calibration coverage identifies the fixed No. 4 reference carburetor and includes pilot-screw idle-drop adjustment, limiter-cap installation, and fast-idle settings. Tube Routing illustrations identify the connections around the assembly. The later manual also contains the U.S. high-altitude adjustment procedure.

Model-Year Suspension and Brake Coverage

The ’80 addendum details air-assisted front forks and adjustable F.V.Q. twin rear shocks. The 1981–1982 manual covers Pro-Link rear suspension, including shock oil-seal replacement and linkage-bushing inspection, along with the front-fork air-equalizer connection. Its brake chapters address dual-piston calipers and ventilated front discs.

Touring-equipment coverage includes fairing disassembly, windshield replacement, and saddlebag/stay removal for chassis access. The ’82 addendum adds fuel-strainer service, seat and grab-rail removal, and rear-shock mounting-bushing lubrication.

Wheel and wheel-bearing service are covered in this set; tubeless tire repair is referred to a separate Honda manual.

Electrical Diagnostics

Ignition troubleshooting separates faults among the paired-cylinder circuits and provides tests for the pulse generators, spark units, and coils. Alternator work extends to brush, rotor, stator, and drive-coupling inspection, with regulator/rectifier test tables.

For the later chassis, Rear Suspension Warning System flowcharts trace faults through the air-pressure sensor, control unit, wiring, and speedometer input.

Specification Highlights and Special Tools

The reference tables supply component-specific torque specifications, fluid capacities, compression and oil-pressure test data, wear limits, and electrical test values. Tool listings identify the CBX Special Tool Set No. 07900-4220101 and individual service tools such as the carburetor throttle wrench, 07908-4220100.

Always double-check torque values against the applicable model-year specifications and keep your workspace well-ventilated when handling fuel system components.