Small Engine Troubleshooting Problems? Ask a Mechanic Now.
What is the serial number of the genset?
Is the choke cycling open and closed while the engine is cranking, or does it just stay closed?
OK. First check to see if you can manually move the choke. It should move freely, with no sticking or binding.
Next, unplug the choke solenoid. Set a meter to read DCV.
On the female side of the plug, the side going back to the controller, connect the red meter lead to wire 14, and the black meter lead to wire 90.
Set the switch to MANUAL. You should see voltage for about 2 seconds, and then no voltage for about 2 seconds, and it should repeat.
Next, set your meter to ohms. On the male side of the plug, connect one meter lead to each pin. It does not matter which lead goes to which pin. You should get a reading of 3.7 ohms.
Let me know what you find.
That choke is staying closed for too long. The choke is powered directly by the controller.
By what is happening, I would say the controller is bad.
I have been a Generac technician for almost 15 years, and have never seen a controller fail like that.
It does not make sense why the unit would only run with the choke solenoid disconnected. The unit should still run even if the choke is fully closed. That is how the low speed exercise works, by closing the choke to make the engine run slower.
It looks like you are going to need to replace the controller.
Yes, this unit can be set up for low speed exercise.
No, there is no way to reset the controller.