Yeah guys, I did that on my Flexo, which came from the factory with the Governor bypassed, and engine still warranteed by Flexo. So I have no problem bypassing the governor, or discussing it here.
A throttle swivel sits on the carb plate. It has a circlip underneath it, holding it in place. A cable is clamped in it, and that spring installed for positive throttle feel and return.
The governor remains attached, since no one wants to try and reconfigure it later, and the governor linkage provides a bit of return spring- un needed, but it's there. Super simple setup, but requires drilling an existing hole a bit larger. The throttle feel is as good as it is on a Mikuni setup, or better.
Google "GEM 1358 throttle swivel"
EDIT: On the engine used, the original lower throttle cable arm remains. I'd use the GEM 1358 again, and install it on the lower throttle arm, and clamp a cable in and have governor.