1976–1979 Honda Gold Wing GL1000 Shop Manual (P/N 6137103)

This Honda GL-1000 Shop Manual is the July 1978 U.S. printing, covering maintenance, diagnosis, and repair for the 1976–1979 Gold Wing. Its 18 sections include service information, a maintenance schedule, serial-number identification, metric conversions, torque specifications, and special-tool references.

• Engine repair: Engine removal and installation, timing-belt replacement, cylinder-head service, crankshaft and piston inspection, and bearing selection.
• Fuel and tune-up: Carburetor overhaul and synchronization, fuel-pump testing, breaker-point service, static and dynamic ignition timing, and valve-clearance adjustment.
• Lubrication and cooling: Oil-pressure diagnosis, main and scavenging oil-pump inspection, thermostat tests, radiator service, and cooling-system pressure checks.
• Clutch and driveline: Clutch disassembly, transmission shaft and shift-mechanism inspection, final-drive hub service, backlash measurement, and bearing-preload adjustment.
• Brakes and chassis: Front-fork and steering-head service, master-cylinder and caliper overhaul, brake bleeding, wheel-bearing work, and wheel inspection.
• Electrical diagnosis: Starter-motor and relay tests, AC generator and charging-system checks, ignition-component inspection, instrument testing, and model-specific wiring diagrams.

Mechanically qualified owners with the specified tools can use the routine maintenance sections; internal overhaul work suits experienced technicians equipped for precision measurement and press work.

Engine Internals and Drivetrain Access

Cylinder-head coverage extends to valve guides, seat inspection and grinding, camshaft clearances, and bolt-tightening sequences. Engine-mount tightening sequences and valve-seat inspection drawings accompany the procedures.

The lower-engine chapters explain crankshaft journal checks and color-coded bearing selection. Primary-drive power-flow drawings accompany the transmission coverage.

Cylinder-head service and clutch-plate work can be performed with the engine in the frame; internal transmission work requires engine removal and crankcase separation. The clutch outer drum and scavenging pump also require engine removal.

Timing-belt precautions explain how camshaft rotation with the belts removed and a piston at top dead center can cause valve-to-piston contact and engine damage.

Final-drive procedures cover backlash, bearing preload, and spacer selection. A damaged ring gear, pinion gear, or rear pinion bearing calls for replacement of the complete final-drive hub assembly.

Carburetor Variants and Cooling Diagnosis

Carburetor data distinguish the emission-controlled 771A arrangement from earlier versions, with separate idle-drop adjustment instructions for emission-controlled machines. This distinction helps match jet specifications and adjustment procedures to the carburetors being serviced.

Primary and secondary fuel-circuit diagrams explain metering operation; the overhaul chapter also covers the air-cutoff valve and float adjustment.

Cooling diagnosis includes cap and system pressure tests, thermostat inspection, and water-pump checks. A worn or damaged water pump is replaced as an assembly; lubrication coverage adds oil-pressure troubleshooting and checks for coolant contamination.

The cooling chapter includes precautions for hot, pressurized coolant.

Steering, Brake, and Wheel Differences

Separate sections distinguish early and later steering bearings and brake assemblies, including the 1979 front master cylinder. Rear tires for wire-spoke and ComStar wheels have different bead dimensions; the manual warns that interchanging them can damage the tire, rim, or inner tube.

Charging Tests and Electrical Fault Tracing

Starter-motor and relay diagnosis is paired with ignition-coil, ballast-resistor, and breaker-point checks. Separate wiring diagrams cover early and later machines, supported by junction-box connector views; the reserve-lighting section applies to the earlier arrangement.

Charging-system tests can be performed on the motorcycle, while AC generator removal requires engine removal. That separation helps narrow a charging fault before major disassembly; the special-tool list identifies rotor holder 07925-3710100 and rotor puller 07934-3710200.

A Sample of Tune-Up and Final-Drive Specifications

These tune-up and final-drive values are a small selection from the manual's service data.

The tune-up table specifies cold intake and exhaust valve clearance of 0.10 mm (0.004 in) and cold cylinder compression of 12 kg/cm² (171 psi).

Final-drive oil capacity is listed as 210 cc, while the oil-change instructions give a refill quantity of 200–220 cc.

PDF Navigation and File Contents

Search, bookmarks, and wiring detail: Text search is partial: the embedded OCR contains recognition errors, and some pages have no searchable text. Bookmarks link to the service sections and wiring diagrams. Small wiring labels require zooming, and some labels in the earlier diagram remain faint and difficult to read.

Supplied as one printable, 326-page PDF download: one contents/how-to-use page and 325 pages of workshop content, including the wiring diagrams.