Honda motorcycle parts
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1979 Honda CB650 · Starter & Charging Buying guide
The alternator and starter brush sets have different dimensions and mounting details. Keep those specifications separate from the regulator’s connector layout and the starter relay’s optional pigtail.
Rick’s rectifier/regulatorEight-wire unit with two plugs: one six-prong/five-wire and one four-prong/three-wire connector.View part
Alternator brush setTwo brushes with clip mounts, measuring 18 × 5 × 4.5 mm, for Honda electromagnetic rotors.View part
Mitsuba starter brush setTwo 12 × 14 × 6 mm brushes: one with insulated leads and one with non-insulated leads.View part
Related parts: Starter relay with fuse · Matching starter-relay pigtail
Alternator set 24-2001 supplies two 18 × 5 × 4.5 mm brushes with clip mounts, referencing 31124-MG5-000 / 31124-422-005 / 31125-422-000. Starter set 24-2021 supplies two 12 × 14 × 6 mm brushes for the Mitsuba two-brush design: one insulated lead and one non-insulated lead. Its references are 31201-292-158 / 31201-MG9-004.
Regulator 24-2030 references 31600-460-731 / 31600-426-000 and has five wires in a six-prong housing plus three in a four-prong housing. Relay 73-0824 references 35850-MB0-007 and includes a fuse; its matching 11-2098 pigtail is sold separately.
The regulator record specifies its connections and replacement references but does not state battery-chemistry compatibility or charging-voltage limits. Confirm the regulator manufacturer’s specification against the fitted battery’s requirements before choosing it for a converted setup.
The pigtail seller expressly warns that wire colours do not establish terminal orientation. It identifies 11-2098 as compatible with the selected 73-0824 relay; verify the terminal arrangement against the relevant wiring information rather than treating colour similarity as proof of a match.
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