uh? Tom.........the 9N did NOT have a starter solenoid from the factory. Hard telling after 70-yrs what may have been re-wired. The 9N had a jiggle-pole operated starter safety switch from the bottom of the dash to the back of the dash. Surprizingly enuff, starter don't care 6V or 12V, positive or negative ground......still turns the correct direction only faster with 12V. Do NOT use wimpy ferrin maid starter cables. Use 'arry-chested 'merrican made ought (0) thick as yer thumb cable.
Do I haffta tell you to REPLACE yer starter motor cable???? .........respectfully, Dell