About the Honda CB650C
Repair choices for both 1980 and 1981 Customs, with carburetor parts separated by year.
The early CB650C is the Custom version of Honda’s four-cylinder CB650. Retain the C designation when selecting carburetor and chassis parts; a standard CB650 or later SC/Nighthawk entry may describe a different application.
A 1981 carburetor repair has its own parts route
The featured rebuild kit covers the 1980 Custom. For 1981, this guide links an explicitly listed float, bowl gasket and intake-holder set. Those are useful individual repair options without extending the 1980 kit’s coverage.
Choose the model and repair1980 and 1981 CB650C fuel-system choices
| Model year | Supported choice | Repair purpose |
|---|---|---|
| 1980 | 1980 Custom carburetor rebuild kit | Rebuild-kit application for the 1980 Custom. |
| 1981 | 1981 Custom carburetor float | Fuel-level hardware; sold individually. |
| 1981 | 1981 Custom float-bowl gasket | Bowl-to-body sealing; sold individually. |
| 1981 | 1981 Custom intake-holder set | Seals the intake connection between carburetors and engine. |
For a complete 1981 bank rebuild, send the carburetor markings and required service pieces for a kit check. The separate 1981 component listings do not establish the contents or fitment of a full rebuild kit.
Frame, engine & fitted componentsHonda CB650C identification checklist
Use these details to match your motorcycle and any replacement assemblies before ordering.
- Record the frame/VIN with the CB650C model year, and copy the engine number separately.
- Read the carburetor body markings, particularly on a 1981 Custom or a bike with replacement carburetors.
- Inspect the fork assembly and existing seal dimensions before ordering for a changed front end.
- Match rear brake shoes to the fitted hub and shoe profile; check front hydraulic parts separately.
Contact PartsNMore with clear photos of the frame/VIN, engine number and the part’s markings, plus any known component changes.
