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1978 Honda CB750A Hondamatic Main Wiring Harness

The main loom listed here is specifically for the 1977–78 CB750A Hondamatic, replacing reference 32100-393-770. Start by identifying the harness already fitted. A motorcycle with changed controls or other electrical equipment needs those connections compared before a model-specific main harness is chosen.

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Honda CB750A wire harness 32100-393-770

1977-78 Honda CB750A Wire Harness ~ Replaces 32100-393-770

$149.95 USD
24-4017
Replace your CB750A Hondamatic wire harness with this Main Wire Harness Loom, replacing OEM #32100-393-770.These fit only the model year and type listed. Other...
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1978 Honda CB750A · Wiring Harness Buying guide

Confirm the main loom’s identity before ordering

The listing calls this a main wiring harness and restricts it to the named model years and type. It does not establish a general CB750 application or a package of other electrical assemblies.

Parts to consider

1977-78 Honda CB750A Wire Harness ~ Replaces 32100-393-770 Main loom for the HondamaticMain wiring harness referencing 32100-393-770. The description specifically limits it to the 1977–78 CB750A.View part

Check the connections to equipment you intend to retain

Record changed switches, replacement lamps and charging equipment before planning a loom replacement. Match those connections separately; selecting the correct main harness does not resolve alterations elsewhere in the motorcycle.

Inspect changes beyond the main loom

The product is described as a main harness, without an itemised package of switches, coils or charging units. Compare those fitted components separately, especially where previous work changed their connections. Confirm any unclear connection with the listing before ordering rather than assuming the loom also replaces every attached electrical component.

Common questions

How is this loom identified separately from the 1976 Hondamatic version?

This 1977–78 loom replaces 32100-393-770. The separately listed 1976 CB750A loom replaces 32100-393-000. Use the complete reference as well as the model year, particularly when the motorcycle’s wiring history is uncertain.

Can the same loom be chosen for another CB750 type?

The listing warns that other years and types use different harness references and that the difference matters. It does not give a general CB750 application. Match the actual model, year and fitted harness rather than extending the stated fitment.

Does the harness include switches and charging components?

The description identifies a main wiring harness loom. It does not list replacement switches, coils or regulator/rectifier assemblies as contents. Inspect those components separately and use their own descriptions when deciding whether they belong in the same repair order.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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