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1981 Honda CB900F Starter & Charging Service Parts

Starter and charging faults on the 1981 CB900F Supersport require different tests and parts. Alternator brushes, starter-motor brushes and starter-clutch rollers serve separate assemblies, so identify the fault and the fitted equipment before selecting one of these service options.

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Currently viewing Starter & Charging System

Honda motorcycle parts

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Honda CB1100 CB1000 CB900 CB750 alternator cover gasket 11691-425-000

Honda CB1100 / CB1000 / CB900 / CB750 Alternator Cover Gasket ~ Replaces 11691-425-000

$12.64 USD
12-5008
Replace the alternator cover gasket on your DOHC CB with this Alternator Cover Gasket, replacing OEM #11691-425-000. Fits the 1979-82 CB750 family, CB750SC Nighthawk,...
Honda CB1100 CB1000 CB900 CB750 starter clutch rebuild kit

Honda CB1100 / CB1000 / CB900 / CB750 Starter Clutch Rebuild Kit

$47.95 USD
24-5001
Rebuild your starter clutch with this Starter Clutch Rebuild Kit, including 3 rollers (15 x 13), 3 caps (15.5 x 6.2), and 3 springs.Key...
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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 CB900 CB750 CB450 alternator rotor puller

Honda CB Alternator Rotor Puller

$12.95 USD
35-0035
Pull your DOHC CB alternator rotor with this Alternator Rotor Puller, 18mm x M1.5 right-hand thread, for internal-thread rotors and flywheels.Key Features• Alternator rotor...
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...
Honda CB1100 CB1000 CB900 CB750 rectifier regulator

Honda CB1100 / CB1000 / CB900 / CB750 Rectifier/Regulator

$199.95 USD
24-2031
Replace your DOHC CB rectifier/regulator with this Rick's Electric OEM-Style 8-Wire Rectifier/Regulator. Two plugs: one 4-prong / 3-wire, and one 6-prong / 5-wire. Key...
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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...
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Honda CB1100 CB1000 CB900 CB750 stator

Honda CB1100 / CB1000 / CB900 / CB750 Stator

$249.95 USD
24-2022
Replace your DOHC CB's stator with this Stator, more reliable than stock, no core required.Key Features• Stator• More reliable than stock• No core requiredFitment...
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...
Honda CB1100 CB900 CB750 starter motor cable 32402-425-000

Honda CB1100 / CB900 / CB750 Starter Motor Cable ~ Replaces 32402-425-000

$19.95 USD
73-0114
Replace your DOHC CB starter motor cable with this Starter Motor Cable, replacing OEM #32402-425-000.Key Features• Starter motor cable• Replaces OEM #32402-425-000• Honda part...
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 CB1100 CB1000 CB900 CB750 starter motor cover gasket 31282-425-300

Honda CB1100 / CB1000 / CB900 / CB750 Starter Motor Cover Gasket ~ Replaces Honda OEM 31282-425-300

$11.69 USD
18-7070
Starter Motor Cover Gasket ~ Replaces Honda OEM 31282-425-300 for the Honda CB models listed below. Use this part for repair, restoration, or replacement...
Honda CB1100 CB1000 CB900 CB750 rectifier regulator lithium ion battery compatible 31600-MA6-910

Honda CB1100 / CB1000 / CB900 / CB750 Rectifier/Regulator ~ Lithium Ion Battery Compatible

$199.95 USD
24-6006
Upgrade your DOHC CB to a lithium-ion compatible regulator with this Rick's Electric Rectifier/Regulator. Designed with a lower voltage set point for lithium-ion batteries...
Honda CB1100 CB1000 CB900 starter clutch roller spring 28125-516-030

Honda CB Starter Clutch Roller Spring ~ Replaces 28125-516-030

$3.50 USD
73-0856
Replace your starter clutch roller spring with this Starter Clutch Roller Spring, replacing OEM #28125-516-030.Sold each, order the quantity you require.Key Features• Starter clutch...
Honda CB1100 CB1000 CB900 CB750 starter motor 31200-438-505

Honda CB1100 / CB1000 / CB900 / CB750 Starter Motor ~ Replaces 31200-438-505

$329.00 USD
73-1079
Replace your starter motor with this Starter Motor Unit, replacing OEM #31200-438-505. This starter bolts on as a direct replacement for the OEM type...
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1981 Honda CB900F Supersport · Starter & Charging Service Buying guide

Separate no-crank faults from a slipping starter clutch

If the starter does not turn, check the battery, high-current connections, relay and start-control circuit. If the motor turns but the engine does not, inspect the starter drive and clutch. A roller kit cannot repair worn drive-gear contact surfaces.

Starter and charging components

Honda CB Replacement Alternator Brush Set ~ Replaces 31124-MG5-000 Alternator brush pairTwo brushes for Honda electromagnetic rotors; replacement references 31124-MG5-000, 31124-422-005 and 31125-422-000.View part Honda CB Starter Motor Brush Set ~ Replaces 31201-292-158 Starter brush pairTwo brushes: one insulated lead and one non-insulated lead. Replacement references 31201-292-158 and 31201-MG9-004.View part Honda CB1100 / CB1000 / CB900 / CB750 Starter Clutch Rebuild Kit Rollers, caps and springsThree rollers, three caps and three springs for one starter-clutch rebuild.View part

Related parts: Starter relay with fuse · Relay connector 11-2098 · Alternator brush holder

Match service parts to the starter actually fitted

The listed brush pair is for a compatible Mitsuba two-brush motor and has one insulated and one non-insulated lead. A replacement motor can use another design. Inspect the brushes, commutator and electrical condition before assuming new brushes are the whole repair.

Diagnose the complete charging system

Check the battery, wiring, alternator brushes, rotor, stator and regulator/rectifier before replacing one part for poor charging. Compare connector positions and the battery’s charging requirements. A lithium-specific regulator is not a universal upgrade for a lead-acid installation.

Ordering questions

Will the starter-brush pair suit any replacement motor?

Only a compatible Mitsuba two-brush design. Compare the actual brush arrangement, dimensions and lead insulation before ordering. A four-brush or otherwise different replacement motor needs its own service parts.

Can I connect the replacement relay pigtail by wire color?

No. The pigtail listing warns that colors do not guarantee terminal orientation. Identify every terminal from the motorcycle diagram and relay instructions before connecting it, and inspect adjacent wires if the old connector has overheated.

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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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