Hi Mowerfreak and NormK,

I don�t have an issue with plastic carbs, I can rebuild them in my sleep. I was just asking about the G3 carb and the lack of a rev range.

The G3 throttle butterfly works off the flag and the force put onto it by the flywheel fins, the only mechanical force is applied via the cable to the lower spring mount which in turn applies more or less tension to the governor spring.

The spring then dictates how much the flag will move under air pressure from the flywheel, this works for idle and cutting revs but not much in between. I was just asking if Norm had any experience with the G3 carb.