To adjust the VS idle speed, remove the locknut and jam nut from the screw in the rear of the VS cover.
Install a new copper washer and the jam nut.
Start the engine. Hold the VS lever counterclockwise in the idle position. Adjust the idle screw to the correct rpm and tighten the jam nut.
Install a new copper washer and locknut.
To adjust the VS high speed, remove the locknut and jam nut from the top screw of the VS cover. Discard the copper washers.
Start the engine. Hold the VS lever clockwise in the high speed position. Adjust the screw to the correct rpm and tighten the jam nut.
Install a new copper washer and the locknut.