G'day folks,
Wce, being a g3 carby , you may need to lift the governor vane upwards and turn it. There may be a clip to remove
There is a set of teeth on the bottom of the vane that mesh on a set on the throttle linkage (best way I can describe) and if someone bumps the vane upwards and around (eg when cleaning) it will either rev harder or wont rev at all.
It doesn't quite work that way; it shouldn't be possible to move the vane very far vertically.
The part that moves to adjust the governed speed is actually the lower governor spring seat, #25 'Tension applicator', in the exploded diagram on Page 7 of the repair manual excerpt. That's the bit with the teeth, that engage with corresponding teeth on #26.
The clip Tyler mentions, #35, locks that seat to #26, the throttle connector, when installed - so it's best to replace it after adjustment.
One thing to check on these carbies [they're not very prone to air leaks, unless the butterfly shaft is a very sloppy fit in the carby body] is the timing of the governor bevel gears. They can slip, and throw the governed speed out of whack.
The correct setup is described on Page 8 of the doco. Need to have the carby off the mower, to check this.
If the gear/s are worn out, the ODK Shop is about the sole remaining source;
https://www.outdoorking-forum.com.au/engines...3?zenid=1eeee8593edc33f0e6c64a6d483b65c5
