Part Description
Adapter for use on Mikuni HSR42 & HSR45
Text excerpt from the catalog:
This trick adaptor allows you to install almost any air cleaner assembly that is designed for the stock Keihin CV carburetor on a Mikuni HSR42 or HSR45 performance carburetor. Features a thick rubber sealing ring that slips over the throat of the HSR carb. Comes complete with hardware.