I have tried to mount a Minn Kota Maxxum on my 1997 Nitro 700LX. I have 3 through bolts, double nutted with stainless nut & lock washer & nylock nut. But the 4th one, the farthest left, cannot reach, even though bow panel. Made a tool to try & get a nut on it, but cannot see screw & cannot find it blind. Any help would be appreciated. The motor seems secure but rather have 4 bolts.