Yep, limited design, unlike an ad I’ve seen for the Bink’s of that era ,some things never change.
I’ve been adjusting the stop of the throttle by altering cable length. The float level by packing washers to the needle shoulder. On mine the float chamber is at a fixed angle, so I can’t alter its angle to adjust the level, is this what you mean or have I misunderstood. ❓
by the way, thanks for the help (yet again )