So, the engine speed is preset at the factory. the tube at the rear of the carby that connects to engine block is the governor.
Hello Nolan
I think you've got the theory right (for my modest understanding).
But the rear tube would be for the decompressor, the front tube for the governor.
Sorry Cyber Jack, depends on which end you're calling front and back. The governor hose plugs into the "restrictor". I thinks that's what it's called on the diagram at the start of this thread. The decompressor gets plugged into the part of the carby which houses the puppet Valve head.
But then maybe I've been hooking them up wrong
The 'restrictor' is actually a small separate part fitted inside the governor tube, and is only used on a few models with low [2700-3250rpm] governed speed.
It's more correct to say that the governor vacuum tube goes to the carby diaphragm cap, and the decompressor vacuum tube goes to the engine side of the carby body.
