Join Date: May 2010
Location: Williamsburg, VA
That's why the original choke, and any electric replacement, are best wired through the electric choke switch. That's the other part on the side of the "T" fitting where the oil pressure sending unit is located. It is a switch that closes when oil pressure comes up to normal on the engine. If you draw power from any other switched source you will power up the electric coil in the choke (thus opening the choke) any time the switch is in the on position, like sitting with your key in 'on' but the engine not running (like some of us do occasionally to keep accessories powered up). Best to pull the power from the original pressure switch as designed.