Wayne Dohnal wrote:
Does the Champion equivalent of the eco switch work the same way, or does it run the engine up to full RPM?
Wayne,
The CPE2000i uses a stepper motor to control engine speed via the carburetor butterfly position.
What I have observed is that with the Economy switch off the stepper motor opens the carburetor butterfly plate to the maximum position and the engine runs at full RPM regardless of load.
In the ECO position the stepper will increase engine speed as load increases. I think I remember determining that there were four positions or steps. If it were not raining, I would run the test again to be sure.
A diagram with a little more clarity than the one below can be found
here on page 25 of the 73531i manual.
