Electrical repairs on the 1978 CB750F can involve the main loom, individual controls or a smaller branch of wiring. Start with the component being repaired. The model-specific loom and left bar switch deserve particular attention when previous owners have changed the handlebars or connections.
Replace your CB750 spark plugs with these NGK D8EA Spark Plugs, the standard original CB750 spark plug.4 required per CB750.Key Features• NGK D8EA spark...
Upgrade or restore your classic Honda motorcycle’s battery mounting system with this Stock Type Battery Band — a quality replacement designed to keep your...
Replace your SOHC CB750's points condenser with this Condenser, replacing OEM #30250-300-154 / #30250-300-005. Two required per CB750.Key Features• Condenser• Replaces OEM #30250-300-154 /...
Match with the left-side contact point using this Contact Point Set (1 piece, left-hand side) for cylinders 1 & 4. Replacing OEM #30203-300-005. Same...
Replace your turn signal flasher relay with this Turn Signal (Flasher) Relay, 12V/23W, 3-prong, with rubber mount attached. For the series 2 and later...
Replace your alternator stator wire harness with this Alternator Stator Wire Harness. Same 7-wire plug as the OEM part and hooks up without alterations....
Replace your points cover screws with this Points Cover Screws Set of 2.Key Features• Points cover screws• Set of 2Fitment / Compatibility• All 1969‑1978...
Restore a late-'70s or DOHC-era CB's ignition with this Ignition Switch with fork lock and keys, replacing OEM #35010-377-007 / #35100-377-003/007 / #35100-422-017 /...
Replace your rear brake light switch with this Rear Brake Light Stop Switch. Exceptionally broad fitment across the SOHC CB750 lineup and virtually the...
Replace your CB750 ignition coils with this Stock Type Ignition Coil Set of 2 with brackets, replacing OEM #30500-300-013. Dual coil assembly pre-mounted on...
Replace your fuse box with this Complete Fuse Box Assembly, including 3 extra fuses. Replaces OEM #32110-341-702. Fits the 1973-78 CB750K, 1977-78 CB750F Supersport,...
Replace your oil pressure switch wire with this Oil Pressure Switch Wire Assembly, including the wire and rubber cover. Replaces OEM #31270-300-154 / #31270-300-005.Key...
Keep your vintage Honda starting strong with this ATX14AHL Replacement Battery, designed for reliable performance across a wide range of classic Honda models. This...
Fit the front brake / clutch safety switch on your classic Honda with this Front Brake & Clutch Safe-T-Switch, replacing OEM #35340-329-003. Used on...
Restore your mid-'70s Honda's stock reflectors with this Stock-Type Screw-On Reflector with a 6mm thread, replacing OEM #33741-340-670. Broad fitment covering the 1972-78 CB750...
Replace your battery box rubber with this Battery Box Rubber "B", replacing OEM #50327-300-000.Sold each, order the quantity you require.Quantity used per bike:• CB750K...
Rebuild your Honda ignition switch base with this Switch Repair Kit, including the base cover. Designed for use with our #12-0051 ignition switch (sold...
Replace the gasket on your 1972-onward Honda's tail light lens with this Tail Light Lens Gasket, replacing OEM #33709-341-671. Matches the fitment of our...
Pull your SOHC CB750 alternator rotor with this Alternator Rotor Puller, 20mm x M1.5 right-hand thread, for internal-thread rotors.Key Features• Alternator rotor puller• 20mm...
Replace your SOHC CB regulator and rectifier with this Rick's Electric OEM-Style Rectifier/Regulator. Combination unit replaces the OEM regulator and rectifier; stock-type plugs and...
Replace your starter clutch diode with this Stator Clutch Diode/Rectifier, replacing OEM #31700-124-003 / #31700-166-008. Exceptionally broad fitment across the SOHC and DOHC CB750...
Replace your SOHC CB750 ignition coil with this Stock-Type Ignition Coil for contact point ignitions, replacing OEM #30501-300-003 / #30502-300-003 / #30502-300-013. 100mm center-to-center...
Restore headlight mounting with this Headlight Setting Collar, replacing OEM #61304-292-000. Exceptionally broad fitment across the classic Honda lineup, from the SOHC and DOHC...
Replace a damaged or pitted headlamp rim with this Chrome Headlamp Rim, replacing OEM #33101-300-673 / #33101-405-671. Fits all 1969-78 CB750s, select late-model DOHC...
Restore your headlamp trim with this Headlamp Rim & Retainer Assembly, replacing OEM #33101-404-671 / #33121-300-672 / #33153-300-671. Fits the full 1969-78 SOHC CB750...
Replace your late-'70s CB starter solenoid with this Starter Solenoid Relay, replacing OEM #35850-375-000 / #35850-286-027. Broad fitment across the late SOHC CB750, CB500T/CB550...
Ensure proper gear position signaling with this Honda OEM neutral switch, designed as a direct replacement for the original component. This switch helps accurately...
Restore your gauge cluster with this replacement Pilot Indicator Light Cover — a direct fit for OEM #37600‑377‑018. This part includes both the front...
Replace your CB750 positive battery cable with this Positive (+) Battery Cable with rubber end covers, replacing OEM #32401-392-000.Key Features• Positive (+) battery cable•...
Match the electrical assembly before building the order
The main loom, fuse box and bar switches are separate assemblies. Their descriptions identify specific CB750F applications and wiring arrangements, giving useful comparison points before considering ignition, lighting or charging parts.
The main loom references 32100-410-010 and is expressly listed for the 1977–78 CB750F. Other CB750 types have different loom references. Compare the motorcycle’s existing wiring and the parts connected to it, especially where replacement controls or a different headlight have been fitted.
Check the small assemblies alongside the main wiring
The fuse box is offered as its own assembly with three extra fuses. The horn branch and alternator stator wiring also have separate listings. Assess each component needed for the repair rather than treating the main loom photograph as a promise that every electrical accessory is supplied.
Common questions
Are the left and right bar switches wired the same way?
The supplier lists left assembly 12-0310 with wiring inside the handlebar and right assembly 12-0302 with wiring outside it. Both list the 1977–78 CB750F. Match the assembly to the fitted handlebar and connections before ordering.
What must match when choosing a regulator after changing battery type?
Regulator 24-2011 is listed for lithium-ion batteries only and excludes standard lead-acid batteries. The ATX14AHL is an AGM battery, so it is not a suitable pairing. Confirm the battery manufacturer’s requirements when choosing charging equipment.
Not sure which part you need?
Send your model and year, plus photos of your existing part and any changes to the original setup.