Mikuni Bs26 - Carburetor Manual Verified

Unlike "slide" carburetors where your throttle cable physically lifts the needle, the BS26 uses a vacuum-operated diaphragm.

This usually indicates a "lean" condition. Try turning the pilot screw out 1/2 turn. mikuni bs26 carburetor manual verified

Hold the rubber slide diaphragm up to a bright light. If you see any light through the rubber, it must be replaced. it must be replaced.