Wonderfull news Converse, glad it came out well.
Just as a note Grumpy, the screw in question here is actually a large plastic screw at the end of the carby, that the govenor poppet valve tip rests against, when in idle, the main throttle cam has the throttle valve legs opened to a set point (no butterfly in this carby) and adjusting the knob will move the poppet valve in and out, which is a second valve, closer to the intake.
The range converse has described is quite normal, the G4 carby was alot more adjustable than the similar LM carby, at least in terms of idle speed. and while a good result would probably be acheivable with one ring, the outcome here is exactly as should be expected from a well functioning Victa G4 carburettor.
