1981 Honda CB900F Parts

Parts and fitment guide for your 1981 CB900F

Use this 1981 CB900F Supersport collection for the early motorcycle’s stock airbox and paper oil-filter service parts. The 2002–07 CB900F 919 uses a separate application list; the shared CB900F name is not a reason to substitute its parts.

Browse by repair

• Engine parts — engine components, seals and service items.
• Fuel-system parts — fuel delivery, intake and air-filter listings.
• Electrical parts — ignition, controls and electrical accessories.
• Brake & clutch parts — brake and clutch service listings.
• Suspension & wheels — fork, wheel and suspension items.
• Exhaust parts — exhaust components and hardware.

Selected parts for the 1981 CB900F

Check each listing for model fitment, dimensions and included quantities before ordering.

• Stock air filter — for the stock airbox; check modified intakes separately.
• Airbox boot set — four carb-to-airbox boots; check the clamp requirements in the listing.
• Oil filter — paper filter element; O-rings, springs and washers are separate.

Identify your CB900F (1981)

Compare the motorcycle’s identifiers with its original-market documentation.

• Identifiers to record — complete frame/VIN and engine markings

Use the linked model chart as a reference alongside those records, especially when registration year and model year differ.

View the model reference chart

For help locating identifiers, see our Honda CB model identification guide.

Plan the airbox repair around the actual boot set

The linked 73-0139 set supplies four carb-to-airbox boots, one of each reference from 17251-438-000 to 17254-438-000. Its replacement band-clamp specification is 60–65mm, part 15-0673. Check the engine-side holders separately, and identify the carburetors before choosing any internal rebuild parts.

Fitment questions

Does replacing the air filter also complete the crankcase-breather service? No. Honda lists breather cleaning separately. For the original U.S.-specification system, the maintenance notes call for more frequent service after riding in rain or at full throttle. Include that check when servicing the stock airbox.

Is reassembling the carburetor rack the final step after an overhaul? Honda’s common service guidance calls for synchronization after multiple carburetors are reassembled. Have that check completed using the model-specific procedure; new airbox boots do not replace it.

Related CB900F collections

• 1982 CB900F parts

Need help checking a part? Contact VintageCB750 with the model year, original market, frame and engine markings, and photos of the component.