GDrive wrote:There could be a difference in either the return spring or the drilled orifice. The former would require a different amount of vacuum to actuate, the latter would control the rate of pressure equalization in the chamber. In the end the two versions could offer slightly different response times to "throttle off" and additionally a different "rev-down time" in returning the motor to idle.
Well, I found the difference. The orifice on the .02 is smaller than that of the .00 as shown below in photo.
Not sure what effect it has on "decel" function, but if my old one goes kaput, I guess I will find out.