Honda CB350 / CL350 Carburetor Diaphragms
Note: Our carburetor diaphragms for Honda CB350 / CL350 twins are sold separately. You will need two diaphragms to service a single bike.
The rubber diaphragms that operate the slides in the Keihin CV carburetors fitted to Honda CB350 / CL350 twins are often degraded after decades of use. If your diaphragms are cracked or crumbling, our brand new versions are a direct replacement for the OEM models, allowing you to simply replace the old diaphragm without needing to replace the entire slide.
Use a light coat of gasket sealer on the edge of the diaphragm covers when installing. While servicing the carbs for diaphragm replacement, consider using our additional Common Motor Collective carburetor parts and rebuild kits:
