Eddy 1406 elec choke operation-Not "getting it"
As it started to catch and warm, even though still cold, it probably increased. Next time, start it with hood open and screwdriver in hand and when it's up on the high idle cam, adjust it down to where it stays running.
High idle cam, NOT the base idle.
Right on the nose.
The engine rpm will raise as the engine gets a little warmed and the choke starts opening, so a quick tap of the gas pedel will/should bring it down.
Just a FYI this is the sequence on my own eddie 600 electric:
Get in and turn on the key to start the electric fuel pump, and wait a second or so to hear the fuel pump start to slow a little (Carb is now full)
Two pumps to the floor to give the initial startup fuel and set the choke.
Turn the key and it fires right up at highest idle
Tap the gas pedal to bring it down just a bit (this is where the idle starts climbing as it gets warmer and the choke starts opening more)
After about 3 min tap it again and it comes down to a normal idle and it's ready to drive.
It changes a little depending on outside temps and the above is winter conditons.
In the summer it's one pump on startup and the high idle is lower (almost normal) because the choke isn't closed as hard from the cold.
Also I think you already found out that the fast idle adjustment screw is a PIA to get to.
I use a 1/4 drive 1/4" short socket as a handle and a changable type screwdriver tip to turn the screw.
Like this.