convert to variable speed?

is there a kit or aftermarket attachment, potentiometer to convert a MK foot controlled with 5 speeds to variable speed?

You need a Minnkota Maximizer. They no longer make them but they do show up on e-bay once in a while.

Give Marc Danque a call, he owns the Crappie Hole in Chapin SC, you can look the number up on line. He makes his own and sells them, had a friend who used one and loves it.

thanx