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1981 Honda CB650 Starter & Charging Parts

Separate a starting fault from a charging fault before choosing electrical parts for your 1981 Honda CB650. Relay connections, alternator-brush condition and the regulator’s two-plug layout all need checking. The correct diagnosis keeps the repair order focused.

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Currently viewing Starter & Charging System

Honda motorcycle parts

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Honda CB1100 CB1000 CB900 CB750 starter solenoid relay 35850-MB0-007

Honda CB Starter Solenoid Relay ~ Replaces 35850-MB0-007

$34.95 USD
73-0824
Replace your starter solenoid relay with this Starter Solenoid Relay with fuse, replacing OEM #35850-MB0-007.If you would like the pigtails / plug that attaches...
Honda CB1100 CB1000 starter motor terminal rubber boot 32411-230-000

Honda CB Starter Motor Terminal Rubber Boot ~ Replaces 32411-230-000

$4.61 USD
73-0092
Replace your starter motor terminal cover with this Starter Motor Terminal (Cover) Rubber Boot, replacing OEM #32411-230-000.Key Features• Starter motor terminal rubber boot• Replaces...
Honda CB1100 CB1000 CB900 CB750 starter clutch diode 31700-124-003

Honda CB Starter Clutch Diode ~ Replaces 31700-124-003

$12.88 USD
24-2044
Replace your starter clutch diode with this Stator Clutch Diode/Rectifier, replacing OEM #31700-124-003 / #31700-166-008. Exceptionally broad fitment across the SOHC and DOHC CB750...
Honda CB1100 CB1000 replacement alternator brush set 31124-MG5-000

Honda CB Replacement Alternator Brush Set ~ Replaces 31124-MG5-000

$34.95 USD
24-2001
Replace your DOHC CB's alternator brushes with this Replacement Alternator Brush Set of 2 with clip mounts. 18mm x 5mm x 4.5mm, for Honda...
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Honda CB1100 CB1000 CB900 CB750 CB700 starter solenoid switch assembly

Honda CB Starter Solenoid Switch Assembly

$44.95 USD
24-2004
Replace your DOHC CB's starter solenoid with this Starter Solenoid Switch Assembly, including a four-gang plug, 30-amp fuse with rubber holder, and cable attachment.The...
New
Honda CB1100 CB1000 CB900 CB750 rotor brush plate holder 31126-422-015

Honda CB Rotor Brush Plate Holder ~ Replaces 31126-422-015

$49.95 USD
24-2081
Replace your DOHC CB's rotor brush plate holder with this Rotor Brush Plate Holder for alternators, replacing OEM #31126-422-015 / #31126-422-005.Key Features• Rotor brush...
New
Honda CB starter motor seal 60 x 1.4 31206-286-158

Honda CB Starter Motor Seal 60 x 1.4 ~ Replaces 31206-286-158

$5.95 USD
03-0784
Seal up your starter motor with this Starter Motor Seal, size 60 x 1.4, replacing OEM #31206-286-158 / #31206-402-008. Exceptionally broad fitment across the...
New
Honda CB starter motor seal 24.4 x 3.1 91312-MG7-003

Honda CB Starter Motor Seal 24.4 x 3.1 ~ Replaces 91312-MG7-003

$4.50 USD
03-0780
Seal up your starter motor with this Starter Motor Seal, size 24.4 x 3.1, replacing OEM #91312-MG7-003 / #91309-300-000 / #91309-425-003. Exceptionally wide fitment...
Honda CB1100 CB1000 CB900 CB750 starter motor brush set 31201-292-158

Honda CB Starter Motor Brush Set ~ Replaces 31201-292-158

$29.95 USD
24-2021
Replace your Mitsuba 2-brush starter motor brushes with this Replacement Starter Brush Set of 2, 12mm x 14mm x 6mm, 1 piece with insulated...
Honda CB1100 CB1000 CB900 CB750 CB700 starter relay pigtail plug

Honda CB Starter Relay Pigtail / Plug

$7.95 USD
11-2098
Connect your starter relay cleanly with this Starter Relay Pigtail / Plug. Designed to connect to our starter relays #24-2004 and #73-0824.Important: despite the...
Honda CB650 CB650C CB650SC alternator cover gasket 11691-426-306

1979-82 Honda CB650 / CB650C / CB650SC Alternator Cover Gasket ~ Replaces 11691-426-306

$11.05 USD
18-6994
Replace your CB650 alternator cover gasket with this Alternator Cover Gasket, replacing OEM #11691-426-306.Key Features• Alternator cover gasket• Replaces OEM #11691-426-306• Honda part name:...
Honda CB650 CB650C CB650SC rectifier regulator 31600-460-731

1979-82 Honda CB650 / CB650C / CB650SC Rectifier/Regulator ~ Replaces 31600-460-731

$149.95 USD
24-2030
Replace your CB650's rectifier/regulator with this Rick's Electric 8-Wire Rectifier/Regulator with 2 plugs (one 6-prong / 5-wire, one 4-prong / 3-wire). Replaces OEM #31600-460-731...
Honda CB650 CB650C CB650SC rectifier regulator lithium ion battery compatible 31600-460-731

1979-82 Honda CB650 / CB650C / CB650SC Rectifier/Regulator ~ Lithium Ion Battery Compatible

$199.95 USD
24-6005
Upgrade your CB650 to a lithium-ion compatible regulator with this Rick's Electric Rectifier/Regulator. Designed with a lower voltage set point for lithium-ion batteries only....
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Honda CB650 CB650C CB650SC stock style stator

1979-82 Honda CB650 / CB650C / CB650SC Stock Style Stator

$299.95 USD
24-2186
Replace your CB650 stator with this Rick's Electric High Performance Stock Style Stator. Direct plug-in stator complete with all rubbers and OEM-style end plug.Key...
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1981 Honda CB650 · Starter & Charging Parts Buying guide

Keep relay and charging-part identities separate

The relay and its pigtail are separate purchases with an explicit product pairing. The alternator brushes and regulator instead have dimensions, replacement references and connector details to compare with the fitted charging assembly.

Parts to consider

Honda CB Starter Solenoid Relay ~ Replaces 35850-MB0-007 Starter solenoid relayRelay 73-0824 includes a fuse and references 35850-MB0-007; matching pigtail separate.View part Honda CB Replacement Alternator Brush Set ~ Replaces 31124-MG5-000 Alternator brush pairTwo 18 × 5 × 4.5 mm brushes with clip mounts for the listed electromagnetic rotor.View part 1979-82 Honda CB650 / CB650C / CB650SC Rectifier/Regulator ~ Replaces 31600-460-731 Eight-wire regulator/rectifierTwo connectors: six-prong with five wires and four-prong with three wires.View part

Related parts: Matching starter-relay pigtail

Match the relay and connector by their product pairing

Pigtail 11-2098 is explicitly listed for relay 73-0824. The relay includes a fuse, while the pigtail supplies the wiring connector separately. The relay record does not state the included fuse’s amperage; confirm it against the required circuit specification if that detail determines your choice.

Compare the charging references and plug inventory

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. Regulator 24-2030 references 31600-460-731 / 31600-426-000. Its eight wires occupy two housings: five wires in the six-prong plug and three in the four-prong plug. Compare the occupied positions as well as the housing shapes when identifying the replacement.

Ordering questions

Can I select the relay pigtail by matching the existing wire colours?

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.

Do matching plugs establish regulator suitability after a battery conversion?

The regulator record specifies 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.

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

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