(ET) More Wiring Problems

[Lordphipps999 aol com]

A while back I asked for and received help in installing the 6 batteries. I 
need help again with the wiring. I needed a lift motor for my front end 
mower. The old motor had a 3-wire connection (Yellow,Red and Blue wires) and 
looked exactly like the power window motors from the older GM cars. 
I installed a power window motor from a 1976 Cadillac. The Cadillac  motor 
has only a 2-wire connection and obviously takes 12 volts. I figure that it 
should be able to take 18 volts.
First I unhooked the # 12 and # 51 wires from under the tractor seat. Then  I 
attached the red and yellow wires from the original connector to the Cadillac 
motor 2-wire connector and the blue wire was left dangling. The problem is 
that the motor goes up and down, but it is drawing 36 volts in either 
direction. Is the blue wire also the #51 wire? Should I hook it up to the neg 
on the number 3 battery. Why am I drawing 36 volts through the red or yellow 
wire?