Honda motorcycle parts
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1979 Honda CB750F · Starter & Charging Buying guide
Starter motors, starter brushes, alternator brushes and charging regulators are separate purchase choices. Identify the component needing repair before ordering for the 1979 CB750F, and record any changes to the starter, wiring or battery.
Alternator brush pairClip-mounted brush set 24-2001 replaces 31124-MG5-000, 31124-422-005 and 31125-422-000 for the listed Honda electromagnetic-rotor applications.View part
Eight-wire rectifier/regulatorRick’s Electric OEM-style unit 24-2031 lists the 1979–82 CB750F and uses two plugs. Compare the connector details below.View part
Replacement starter motorStarter 73-1079 replaces 31200-438-505 and lists the 1979–82 CB750F. The supplier describes it as an OEM-type bolt-on replacement.View part
Related parts: Starter solenoid assembly · Mitsuba starter brush pair · Alternator cover gasket
Alternator set 24-2001 supplies two 18 × 5 × 4.5 mm brushes with clip mounts. Starter brush set 24-2021 is specifically for a Mitsuba two-brush starter and supplies 12 × 14 × 6 mm brushes: one with insulated leads and one with non-insulated leads. Match the fitted unit and brush arrangement before choosing internal replacement parts.
Regulator 24-2031 has eight wires across two plugs: one four-prong/three-wire plug and one six-prong/five-wire plug. Keep both the plug configuration and wire counts available when comparing the replacement with the harness.
This Rick’s Electric unit explicitly lists the 1979–82 CB750F but is for lithium-ion batteries only, with a 14 V ± 0.2 set point. It is not for standard lead-acid batteries. Confirm that voltage requirement with the battery manufacturer before buying it for a conversion; motorcycle fitment alone does not settle battery compatibility.
Assembly 24-2004 lists a four-gang plug, 30-amp fuse with rubber holder and cable attachment. Its matching wiring pigtail 11-2098 is sold separately and explicitly connects to this relay. If replacing that pigtail, heed its supplier warning that wire colours do not establish the correct wire orientation; compatibility with the relay does not remove that check.
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