I know stuff like this is tough to diagnose over the internet but I'm hoping for some fresh ideas here. My Jeep won't start.
The history: It's a running motor recently re-installed after stripping down to the frame. I did fire and run the motor once already so I know it "should" work....but now it's not. Since the last time it ran I did remove the carb, fuel pump, and intake/exhaust manifolds in order to install a new oil filter and a new heat riser. I bolted everything back together the way it was and now it won't start. I also installed new rotor, points, plugs, wires, and distributor cap.
Some misc info:
1. It is a 6V system with a foot start and a key switch with three positions. I'm pretty sure the correct running position of the key is turned all the way to the right. The middle position should be "off" and all the way left should activate just the lights etc? Not sure if this is relevant but the foot starter will turn the motor regardless of key position. I don't know if this is an issue or not.
2. I have spark at the plugs.
3. There is fuel being pumped into the carb. I am not sure what happens to it after that.
4. I am reading just over 6V at the battery. I have checked the ground and connections and believe everything is OK. I've tried a variety of "extra" ground wires just to make sure. The only gauges wired are the FUEL and AMMETER. The coil, voltage regulator, and ignition switch are also connected and I believe those are correct as well. I am using 1GA battery wires.
5. I've tried every combination of choke/throttle/pump-the-gas-first/don't-pump-the-gas-first that I can think of. I will occasionally get a single "pop" like sputter or a random fireball out of the top of the carb but no real firing or consecutive sputters.
6. The tub is off. I am working pretty much with a rolling chassis.
Not sure what other gremlins to chase. Any input would be appreciated.
