Invest in the ESSENTIAL MANUALS then OEM style correct parts after troubleshooting for defects. "I have re-wired it several ways..." but you don't say if 6V/POS GRN or a 12V switch out job. Mucked up wiring is 90% of all non-starting/operating issues. Forget model and year, means nothing, since all 9N & 2Ns after s/n 12500 were the same. OEM 6V will have a 1-Wire/3 Brush 11 AMP 'A' Circuit Generator; the roundcan Cutout Circuit; the OEM Ballast Resistor; front mount distributor with square can coil; a 1-Wire Starter Motor with NO Solenoid; AMMETER; Key Switch; and Neutral Safety Pushbutton Start Switch all wired correctly. A 12V job requires a totally different wiring config. NOTE: 12V wiring requires use of the OEM Ballast Resistor and an external ceramic 1-OHM Resistor in-line as shown if coil is a 6V unit. Discard if 12V coil used.
FORD TRACTOR 9N & 2N, AFTER S/N 12500, OEM 6V/POS GRN WIRING:
FORD 9N-10505-B CUTOUT ľUSED AFTER S/N 12,500 TO S/N 258504 ON 9N & 2N MODELS ONLY:
FORD N-SERIES TRACTOR FRONT MOUNT DISTRIBUTOR 9N-12250 BALLAST RESISTOR:
WIRING PICTOGRAMS by JMOR; OEM 9N & 2N ELECTRICAL SETUP:
FORD 9N/2N ESSENTIAL OWNER/OPERATOR/PARTS/SERVICE MANUALS: