Anyone know what to do about this? I've got 2 x Victa V40 engines and both of them start easily but as soon as the throttle is moved to the run position they over-rev. I measured one at over 2400 rpm and I think they should be around 1800 rpm for maximum rpm at no load. If I move the governor arm towards the carby it will settle down but I can't seem to make this adjustment permanent. I loosen the nut holding the governor arm with the throttle in the run position and then move the arm to the desired position and re-tighten the nut. No difference! I have also moved the governor shaft with pliers in the same manner. No difference. Is this a known problem for V40's as I had one come back with a broken conrod. Is there a way of telling if the governor itself is broken?