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The actuator if I remember correctly can withstand a good bit more than than 11v. I'm using B+ to drive it (~27v). Since its a PWM output I just clamp the duty cycle on the PWM to limit the current. Ultimately when I'm done I may choose a less expensive driver and put in one an additional power...

Just as a general FYI, I'm using a DC Brushed motor driver to drive the actuator for the custom speed controller I've been working on. https://www.pololu.com/product/2992

Yea, in the pinned position it should be in that range. I want to say (from memory) that the mechanical governor needs to have its absolute top speed set for about 3750-3800. With that the electronic governor will be able to push it up to about 3600 without needing too much torque from the...

Lets start with some basic information. Pull start the engine without turning on the main switch. Make sure the electronic governor arm is free to move (not on the magnet and not "pinned" fully to the right). What RPM does the engine run? It should be a low idle. If it idles at 3600 rpm you...

The actuator doesn't have a lot of push or pull. Not enough to overcome the full tension of the governor to kill the motor if you set it up to run manual full rpm.

The secret is to flip the power polarity to the actuator.

There is a knob on the side of the engine that you turn then move to the "shutdown" position. All you would have to do is adjust the mechanical governor so that when the knob was all the way up (run) it would be about 3650 rpm and when you want to shut it down you would just push the knob down...