Hello,
Things I have tried, to stop the engine hunting. please see image below.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2014/01/full-4730-14418-untitled.jpg)
Things I have tried to stop hunting:-
#Red arrows: try changing the engine speed by 150 rpm, try the top and bottom holes. with care you can do this without pulling much apart, I use offset point nose pliers with the governor spring relaxed.
#Green arrow: Move the governor arm one spline on its shaft closer to the carby. To get the governor arm off, undo nut then spread slot with a flat tip driver(yellow arrow) then pry it off with a large flat tip from behind. To make it easier remove the governor plate (blue arrow) 2 x 10mm bolts from memory.
I bought a mower off an ex mowing contractor of 20 years, he used Suzuki's, he used to drill the jet out, I don't know the fine details.
Here are some other images for this thread.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2014/01/full-4730-14420-2.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2014/01/full-4730-14421-1.jpg)
For those who haven't been in side one of these.
Here are my 3, all mounted up on 21 inch Big Bob bases.