On Mar 21, 12:41 am, Bruce in Bangkok wrote:
The Manual quite emphatically states that the high speed adjustment
and the Fuel Injection Limiter should not be adjusted and will void
the guarantee if the seal is broken.

Oddly enough my manual doesn't say that for the injection limiter but
does for the no-load... But I'm sure you're right, why else would
they seal it?

I'm not sure whether the Fuel Injection Limiter has a spring loaded
plunger in it or not. Detroit Diesel engines had a similar device but
in their case it was to limit surge at idle.

Yes, the manual shows a spring in it (though the manual isn't always a
perfect indicator of what is actually installed).

.. The screw should have a
slot so it can be adjusted with a screw driver, if not scratch a line
on the screw so you can tell how far you have turned it.

Right, in practice the nuts and washers are all tight against each
other and no part of the shaft is showing. The adjuster is a hollow
threaded rod with a spring inside of it. The slot on the top of the
rod is the spring retention screw. Not sure if turning it ccw will
undo it or the control shaft. Assuming nothing moves when I take the
acorn I suppose I could make a mark on the shaft w/respect to the lock
nut.

Thanks!

-- Tom.