Hello to everyone. I will be as brief as possible. 1975 MF diesel. Starter started to drag. Thought battery was low. Put on fresh battery. Same thing. Just a couple of "wamp wamps" when trying to start. Put on new starter. Not getting 12 volts on the power wire, the wire coming from the ignition switch to the neutral switch and then to solenoid. Tried to jumper with a screw driver across the big lug with cable coming from battery, to the small lug. Same as before I started working on the thing. All I get is a wamp wamp. So I'm thinking the cable from battery is bad, because obviously not getting enough amps to turn the motor fast enough. So I take jumper cables, bypass everything and put the hot jumper cable on large lug, and ground the other jumper cable. And low and behold I get the same thing!!! Just a wamp wamp. Can anyone offer me some guidance? Could the new starter be bad? If I'm not properly grounded will that reduce the amps going to solenoid? I am definitely out of ideas. I even thought maybe bad spot on the flywheel. So I take off new starter, Flywheel is a little worn, then I engage the PTO and turn it with a pair of channel locks to a new spot on flywheel and still nothing. Any ideas would be very much appreciated! Thank You