Re: The Mikuni to $14 Honda Carb Swap
I don't blame you for not wanting to split the case, I've done a rebuild on one of these Suzukis.
If you still had high revs with the governor all the way to the right (clockwise,) then it sounds like the carb is still giving you too much fuel! I remember screwing around with the idle adjustment too...but I thought I raised the idle...maybe I lowered it. Turn that screw out!
Of course, if the governor was working correctly, it sounds like it should have been all the way to the right already.
Also, check for air leaks (spray carb cleaner), my Mikuni would make this guy SCREAM once it was all heated up and the governor couldn't seem to throttle it down.
Several LawnBoys, 1D, 1E, 2F's
2 Toro/Suzuki 2 strokes
Snapper Wisconsin Robin
A few others...