I understand the purpose of the governor is to slow the engine. In this instance, since there is no manual (user) throttle control, it is meant to keep the engine at a constant speed regardless of the load, i.e., closing the throttle as needed when the blade is disengaged and opening the throttle as needed when cutting grass, always keeping the engine at a constant RPM.
The reason I posted was that it worked that way on my mower for eleven years but it s currently not doing that. The throttle is always wide open.
Rivets suggestion was based on the premise that this lack of movement by the governor to reduced the engine speed was the result of too much spring pressure and that it could be corrected by reducing the spring tension. He suggested by moving the anchor, it would reduce the stretch of the spring and therefore reduce the spring pressure. My reply indicated that in this case, it would not reduce the pressure because the spring was not really being stretched at all. The problem is not that the spring is creating to much pressure, the problem is that the governor does not appear to be creating any force at all.