Will not start

Thanks for getting back. I do have a voltmeter. It does not show any voltage when key is turned to on. I have a Ford system and I have been told this is normal. When I turned the key to crank it does shoe 12.9 V. Engine cranks without a problem.
Thanks

Thanks for replying back and quick response. Good to know that 1981´s CJ-7´s are considered one of the best. Let me point out that this is a Mexican vehicle. It originally came with 6 in line and now has a V8 Ford. Not sure if after know this, you can still say 81 is a good model =P.
Engine will only crank if I pour some gasoline or starter liquid directly to the carburetor. Engine will just do dry monotone over and overs. I did change the starter because it was not working. After this, nightmare started. Starter is exactly the same it used to have (AutoZone refurbished). I´m attaching a quick sketch of my wiring, which by the way is really crappy. Looks like AC did a huge mess. It´s definitely after market. It´s completely disconnected. I´m also attaching pictures of engine, hope they help. I believe it´s a TFI (Ignition Control Module mounted directly in carburetor). Several wires are without any connection. No ballast resistor or ignition coil wire resistor. Any guidance is sincerely appreciated.
Thanks,

JC

Forgot to mention. I also tested compression and found all cylinders okay.
Thanks

JC

It just cranks (turns over using the starter).
Thanks

Here are more pictures.
Not really sure if they´ll help since as you noticed. Wiring extremely bad.
Thanks

Did what you recommended. Please refer to picture. I´m attaching two videos after pouring some gasoline. One showing result of positive battery to positive coil. It does run! Horray! But only for few seconds. =´(
Second video without wire connected from battery positive to coil positive.
Does this mean starter relay is not working?
Thanks Mr. Medic for your help and no worries. I´m patient but really anxious to have my CJ7 running again. Hehe =D

JC

LOL
It´s a live! =D
On second test I did pour more gasoline and engine just crank.
Did the voltage test again, and when key is "on", no voltage at all in coil positive (voltmeter´s black probe in negative from battery and red probe in positive coil). Cranked engine and registered voltage in coil +.
Ignition problem? =S
Thanks

JC

LOL
I think a raccoon would have done a much better work! =D
Answers to your first reply:
1. Yes, these are from heater. I was not able to capture too much from other side of firewall. Second picture shows hoses from the aftermarket A/C (I´m attaching also picture of the A/C console).
2. Wires do not touch. They are soldered (picture 3). I do have twisted wires on wire that goes to solenoid located on the left side of the carburetor (picture attached). Not sure what this is for. The next picture is showing connector that the wire for crank has. You can also see on this same picture slightly to the left an open wire which I indicated on my initial "wire diagram" (right next to the choke - green-).
3. The next picture shows the PCV hole. I´m also attaching two pictures showing open outlets (or inlets?) From rear and front of carburetor. Hope the last picture also shows a hose that goes from brake booster. Not sure of its purpose.

For your second reply, here are my answers:
1. It goes to the "I" terminal in the starter relay.
2. I´ll review your diagram. Thanks for sharing
3. Ignition switch is the same as yours mounted in the steering column. Did validate positions matches key position (e.G. Accessories, ON, etc.). Removed it to ensure this and put it back all the way to the accessory position. Once I place key on accessory voltmeter of dash indicates 12V. I´ll double check the voltage on the ignition itself when key is "ON".

I´ll trace the ignition once it gets to the fuse box and will get back to you as soon as I´m done (hopefuly before day ends).
Sincerely appreciate all our help!

JC

PS1: Jumper was removed.
PS2: I´m seriously thinking in removing OE´s harness and replace it with Painless 10110 kit. Yesterday I compared this kit with the harnesses in place and I think there is minimum differences (e.G. Indicator for wipers in kit has only two wires and also switch harness is different). This was a gift from PO. But hey, CJ used to run fine. Want to make it run before I start this adventure.

Confirmed, 12V when key has "on" position and power from battery cable constantly has 12V, both in ignition switch.
As shown in diagram (first picture), tracing back from coil positive (+), wire will join blue wire that goes to relay. Where these two are joined, a third cable that comes from the choke is joined (brown cable). Out of this relay we have a black and yellow cable not connected to anything, a red wire will come out as well and join to a purple wire that comes from voltage regulator. Once joined it goes to the positive of the battery (red wire). From this relay, there´s another white cable that goes to balast.
There´s no wire going to the ignition switch from coil positive. The crank wire is the only one going from fuse box to "S" in the starter relay.
First picture shows the whole "diagram". Second picture shows union of choke (brown), coil (red) and relay (blue). Third picture shows top view. Fourth picture is another view of "Bosch" relay.
Does the "I" in starter relay needs a wire to get to the fuse box?
Not sure what´s the function of the relay (Bosch) but it´s sure preventing for Coil (+) to be connected directly to (+) in battery (jumper that you suggested at the beginning).
Thanks for your help. =D

JC

Forgot to mention that I removed all electrical wire insulating tape just for better appreciation. I´ll for sure place it back once we are opening champagne celebrating. =D
Thanks

JC

As always, I appreciate your help and advises! Great job on the picture showing how I should protect unused wires! =D As clear as water. I´ll for sure work on this once nightmare is over.
I do have some tools and connectors that will for sure help me with this.
Thanks for your awesome help!

JC

Forgot to mention, awesome video! Thanks for sharing.

JC