If the choke and 2 wire fuel cutoff solenoid is a 3 wire plug ware does the green with white stripe wire go? "Solved"

[Doomedwalker]

8 minutes ago, ggzilla said:

Your guess is as good as ours

i have seen pictures of carbs for 1985 720s that just had that wire going into a 5 or 6 pin plug but mine only has a 3 pin plug, 
unless the carb is not from this truck originally.

[Doomedwalker]

think i am figuring this out, no other reason there would be a round connector on the black wire now i need to find my fuel cutoff solenoid its got to be here some ware.

[Doomedwalker]

8 hours ago, datzenmike said:

Do you have air conditioning? 

 

 

I don't think these style electrical plugs were used on the '84 but they switched in '86. The '86 alternator switched to this style. Maybe your donor was a later '86 engine?

 

Built in Japan or Tennessee, technically an import. If your VIN starts with J it was made in Japan if I then assembled in USA.

no i do not have AC.

[ggzilla]

Why are you so worried about the green wire?

 

The only needed ones are the choke wire and the idle-solenoid wire

[Doomedwalker]

1 minute ago, ggzilla said:

Why are you so worried about the green wire?

 

The only needed ones are the choke wire and the idle-solenoid wire

 

just trying to connect everything that's to be connected, and i think this is why the fuel pump doesn't run off its own wiring.

[Doomedwalker]

https://www.rockauto.com/en/moreinfo.php?pk=1124771&cc=1210352&pt=5904&jsn=9

think i just found my answer... 

 

[datzenmike]

3 hours ago, Doomedwalker said:

 

just trying to connect everything that's to be connected, and i think this is why the fuel pump doesn't run off its own wiring.

 

For the fuel pump to work there are several things that need to happen for the fuel pump relay to be on. There must be oil pressure and the alternator must be charging.

 

You can by pass the fuel pump relay by unplugging the FP relay and jumpering the Blue wire and the White/Black wire

 

[Sephakrid]

2 hours ago, Doomedwalker said:

https://www.rockauto.com/en/moreinfo.php?pk=1124771&cc=1210352&pt=5904&jsn=9

think i just found my answer... 

 

 

Whoa! Good catch! I've never seen that wiring setup before, although I'm much more familiar with the feedback version of this carburetor with the 6 wire/8 plug harness. That makes finding a replacement idle cut solenoid a little annoying. All the replacements I've seen have the same type of connector crimped onto both wires.

[Doomedwalker]

7 hours ago, Sephakrid said:

 

Whoa! Good catch! I've never seen that wiring setup before, although I'm much more familiar with the feedback version of this carburetor with the 6 wire/8 plug harness. That makes finding a replacement idle cut solenoid a little annoying. All the replacements I've seen have the same type of connector crimped onto both wires.

 

yeah i would have to cut and re-crimp the connection.

[Doomedwalker]

9 hours ago, datzenmike said:

 

For the fuel pump to work there are several things that need to happen for the fuel pump relay to be on. There must be oil pressure and the alternator must be charging.

 

You can by pass the fuel pump relay by unplugging the FP relay and jumpering the Blue wire and the White/Black wire

 

yeah, but its the least of my worries till at least after winter is over and i still have some welding to finish.
i had it hot-wired, i just want it to work correctly,

https://files.catbox.moe/6thd9j.jpg

[Doomedwalker]

found it! 

 

 

 

 

 

 

 

 

[Doomedwalker]

 

 

[ggzilla]

Looking good!

[Doomedwalker]

On 10/19/2025 at 11:59 PM, datzenmike said:

 

For the fuel pump to work there are several things that need to happen for the fuel pump relay to be on. There must be oil pressure and the alternator must be charging.

 

You can by pass the fuel pump relay by unplugging the FP relay and jumpering the Blue wire and the White/Black wire

 

 

fuel pump works now that the choke and cutoff solenoid is working now with the green white wire.

 

https://youtube.com/shorts/h2KeGsUlf9g?si=X2MCzJRXxe3N8EMy