I managed to get the 0.3 mm jet drill through the idle jet hole, with just the air cleaner box removed.
The anti surge spring was rubbing a bit on the breather tube.
I also missed tightening the governor bracket.
The result is, it is running alot better, seems to have the slightest surge when running a full speed, certainly OK to use. I have done a fair bit of mowing with it and enjoy using it. Itstarts easily and idles smoothly. They are good choice of mower, powerful with a wide cut.
I have spent a fair bit of time rebuilding the engine and repairing the base, not sure if it was all worth it, for an engine that will last, I'm not sure how long.
