Honda motorcycle parts
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1974 Honda CB750K · Electrical Buying guide
Electrical faults can look similar while needing different parts. Separate starting, charging, ignition and lighting concerns before ordering, and compare any replacement with the equipment already fitted to your CB750K.
NGK D8EA spark plugStandard-type plug. Four required per CB750.View part
Main wiring harnessListed for 1973–75 CB750K. Replaces 32100-341-703.View part
Starter solenoid relayListed for 1969–76 CB750K. Replaces 35850-371-670.View part
Related parts: Stock-type ignition coil set · Fuse box assembly · OEM-style headlight plug
A weak battery, poor connection and worn component can produce similar symptoms. Use the service manual’s diagnostic checks before buying a replacement. Record which lights or controls still work and whether the problem appears during starting, running or charging; these details help narrow a fitment enquiry.
A 1974 frame may now carry a different harness, lamps or ignition system. Photograph the existing connectors and note part numbers before ordering. Treat custom and universal items as separate compatibility checks, especially when combining a charging component, battery or ignition coil with aftermarket equipment.
The linked pair comes pre-mounted on brackets with a listed 4.3-ohm primary and 15,000-ohm secondary resistance. For an electronic-ignition conversion, compare the ignition maker’s coil requirements before choosing the pair.
The listed main loom replaces 32100-341-703 for the 1973–75 CB750K. Other years and CB750 types use different harnesses. Compare your existing loom and connectors rather than choosing by the CB750 name alone.
The complete fuse box includes three extra fuses and replaces 32110-341-702. Count that included supply before adding more spares; keep the required circuit ratings from the correct wiring information.
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