Premium accelerator pump diaphragm
CV Performance, a company which specializes in tuning and improving H-D carburetion, now has a premium accelerator pump diaphragm for Harley carbs. It is a direct replacement for the stock diaphragm, and replaces worn or cracked diaphragms on Harley CV and Harley Keihin butterfly carburetors, as well as S&S Super E and G carbs.
The new diaphragm is claimed to provide greater resistance to the mild fuel additives found in pump gas and as a result should outlast many standard diaphragms, especially when ethanol enhanced fuel is used on an occasional basis. The company also states that replacing an old or worn diaphragm will make an improvement in the bike's performance.
The premium accelerator pump diaphragm is a replacement for H-D part number #27361-76A, and is compatible with all stock carburetors from ‘81-‘06 on Harley Big Twin Evo, Twin Cam and Sportster models, and all S&S Super E and G carburetors.