Honda motorcycle parts
Choose your model and year to see parts listed for your bike.
Choose your model and year to see parts listed for your bike.
1981 Honda CB750K · Electrical Buying guide
A main wiring loom, fuse box and starter relay are distinct purchases with specific contents. Several smaller connection harnesses also have separate listings, including one explicitly excluded from the main loom.
CB750K main loomMain harness listed for the 1981 CB750K, replacing Honda 32100-425-770. Its stated application is the 1980–82 K model.View part
Fuse assembly with 15-amp fusesAssembly replacing Honda 38200-MF9-405. The listing includes 15-amp fuses and identifies the 1981 CB750K among its applications.View part
Starter relay with fuseStarter solenoid relay replacing Honda 35850-MB0-007, supplied with a fuse. The companion connection pigtail is a separate product.View part
The ignition-coil sub-harness description expressly says it is not included with the main wire harnesses. It plugs into the main loom and connects to the coils. Identify whether that section needs replacement as well, rather than expecting a main-harness purchase to include every smaller connection on the motorcycle.
The range supplies a starter relay, charging-system brush and regulator products, ignition coils and other assemblies. Their replacement references and contents describe different jobs. Compare the actual component and its connections, and use the appropriate category guide to build the order without treating an electrical part as a complete system overhaul.
Honda separates this symptom from a starter that will not run. A spinning starter with a stationary engine points to inspection of the starter clutch and drive gears. Identify the mechanical fault before choosing a roller kit or replacing the relay.
Not by itself. Honda identifies loose battery, charging and starting connections, plus loose or shorted ignition and lighting wiring, as possible causes. Locate the affected connection or circuit before deciding between a small wiring repair and a main-harness replacement.
No. Honda’s charging-system fault list also includes wiring faults, the rectifier and generator. The manual allows charging components to be tested on the motorcycle. Check battery condition and have the system tested before choosing a regulator or other charging part.
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