Are you: OEM 6V/POS GRN or a 12V NEG GRN switch over job? 92.357% of all non-starting uses are due to incorrect wiring regardless if 6V or 12V. What does the AMMETER show at idle when running? Have you or someone else messed with the front mount distributor? Get out your Essential Manuals and verify wiring with your VOM set to continuity, no power applied, NOT a test light with power. Got lights? Disconnect for now. Got a good battery? Simply put it on a charger doesn't mean the battery is good. It must sustain a full charge under load, specific gravity met. Take to a local shop, have unit bench tested under load. A battery that has set for three years, let alone 3 months, will be severely discharged and junk. Jump starting is only applying power to the host battery and won't last long. The OEM 6V setup includes: 6V AG battery; 1-Wire/3-Brush Generator WITH A BELT TENSION DEVICE; Roundcan Cutout Circuit (NOT a VR); 1-Wire Starter Motor -NO SOLENOID; OEM Ballast Resistor; 6V square coil; Ignition Key Switch; 30/30 AMMETER; neutral safety starter push button switch, and all wired correctly including correct battery cables for 6V -thick babies. If 12V, gen and cutout are removed, alternator (1-wire best)and 12V battery installed, Ballast resistor as is, coil needs an external 1-OHM ceramic resistor or switch to a 12V coil and eliminate external resistor. Any way, if not wired correctly, you will have issues. Don't assume your shop knew what they were doing with your old gen. Many guys don't have a belt tensioner on gen and thus it will never charge the battery. If firing order is wrong it can cause backfiring. 1,2, 4, 3 CCW-see pic. Start over, go slow, you can do this yourself. You also can jump state the tractor using your car or truck 12V battery -and not have to muck around with trying to pull it all around the yard. There is specific way to do that, but we'll get to that later. Shown are OEM 6V/POS GRN info from manuals. If you have 12V, wiring is different and not shown in any OEM manual.
FORD TRACTOR 9N & 2N OEM 6V/POS GRN WIRING:
<img src="https://i.imgur.com/QWaC1aah.jpg">
<img src="https://i.imgur.com/CJedLEch.jpg">
FRONT MOUNT TIMING PROCEDURE:
FORD TRACTOR FRONT MOUNT DISTRIBUTOR TIMING APPLICATION GAGE:
FORD FRONT MOUNT DISTRIBUTOR – WHAT HAPPENS WHEN MOUNTED 180° OFF:
FORD TRACTOR FRONT MOUNT DISTRIBUTOR FIRING ORDER; 1,2,4,3 CCW:
OEM FORD 2N-10000 GENERATOR WITH BELT TENSIONER ATTACHED:
FORD 9N/2N TRACTOR ESSENTIAL OWNER/OPERATOR/PARTS/SERVICE MANUALS:
Tim Daley(MI)