In Reply to: Re: 9n has a Short posted by Dean on December 23, 2019 at 07:57:12:
Did your son leave the key switch ON? Had it been starting and running fine before? Just because you have a 6V battery don't assume the wiring is all correct. By 'relay' do you mean the roundcan cutout circuit, a starter motor solenoid(should not be be one) or the dash or floor starting pushbutton? Is the Ballast Resistor wired in correctly? Is it a 1-Wire starter motor with NO solenoid? Start with the basics as stated and use a true root cause problem solving method. 1st, get the battery checked out -don't assume it is good and charged in or out of the system. While testing or replacing, check out wiring with the essential manuals before connecting power. . 2nd, go thru the entire wiring system. You can disconnect the lights just to get them out of the equation -can reconnect later when problem solved. Diagrams are all shown with the OEM correct color codes but never assume yours are wired like that. Colors don't conduct electrons. See if these will help. Also go to our HOW-TO's forum and download a copy of Wiring Pictograms by JMOR for reference.
FORD 9N/2N TRACTOR WIRING DIAGRAMS: