There are two mounting options for the the MarkSetBot. The current design leverages quick release ports called Starports. The old design is with bolts. Both options are below.
Mounting V3 - Starports and inflatable hull
Mounting V2 - Starports
Mounting V1 - Bolts
NOTE: Make sure to tighten all four lock nuts. Tighten until the point that rubber washers compress a little bit. There should be about 1/8" of thread above the lock nut.
Here is how the Minn Kota motor gets attached to the deck: