Looks like someone cut off the old light fitting, expecting that the new one would have plenty of wire to make the splice. Clearly it didn't!
You can buy new centres for the bulb holders with longer wires (search BA15S bulb holder on eBay). Solder in some decent quality nylon ones, and heat...
Yes that's a hand throttle - something I removed on day one.
The big 'question marked tape ball' looks like your flasher unit.
You'll feel it click when indicating.
Yes the ring on the bottom of the fuse box is ground - looks like it needs a new ring crimping on.
The white wire above it which...
You could try spraying water at it - it's a lot bigger than air and a lot less bangy than ether.
If its your manifold then it will help, if its your ignition then it will make it worse!
They look a bit frazzled, are they new?? They look like they're getting hot.
Do they close nicely face to face?
0.2 ohms in your hand sounds ok (off the truck) but that's at very low current of course.
What if you put some current behind that? Replace the coil with a lamp bulb for example...
"Carb cleaner at the carb base showed some increase in rpms."
How do you explain this?
Sounds like a gasket or shaft leak, unless it was displacing some water in the ignition briefly
If you remove the regulator you might fry a 7v gauge.
Firstly test if the regulator is actually working as intended by the PO.
If it isn't then you could try replicating it with, say, an LM7807 and a capacitor, or take the gauges out and bench test them at 7v first and then 12v.
So the post measured lower than the points plate because the coil was still connected I assume so everything sounds normal.
We don't know the resistance across the points themselves though.
Sounds like you have a good ground at the points plate at least.
You already tried replacing the 12V...
It looks like a variable voltage regulator or dimmer.
I can't see the writing on it but there seems to be a hole for adjustment.
If that's the case I'd expect a +12v connection input. A ground input, and a lower voltage output.
May be this is a bodge to use a different/ later gauge??
It...
Glad to hear it's all working!
The turn signals should be on a different fuse to the Hazards, so I'm curious is there is another dirty contact or another problem elsewhere.
I guess your turn signal now works without the ignition (or else your hazards only work with the ignition switched on)...
I'd try and measure resistance between each Green-black to ground and then each green-yellow to ground.
You should measure the resistance of the bulbs (assuming they're not LED, this resistance enables the flasher unit to work).
If you flash power onto either of these 4 wires at the hazard...
Ah sorry my bad - I read 78 in place of 73.
Maybe this diagram from the later manual is helpful? Basically the same setup but the green-orange is green-black everywhere.
Which wiring diagram are you using?
On my diagram the turn signal does not share a fuse with the regulator.
The turn signal uses the turn fuse (key set to ign), and the Hazards use the stop fuse (key any /off).
You should have 12v at both green-red wires at the hazard connector (this shows...
Sounds like the hazard switch or switch connector. Blast it with some contact cleaner and click it on and out 20 times.
The connector could expecially be suffering from water ingress down there
They shouldn't be sparking, and certainly not arcing to ground.
If your condenser is in good condition, that doesn't leave many things to try.
You said that your voltmeter measures a good ground at the points plate and the post when closed.
What do you mean by that exactly? You measured...
Have you tried sanding your points faces with a fine sand paper to clean them up?
Take them out and give them a good clean scrubbing off any residual carbon that may be deposited around them.
Ahh there you go, boom.
So how is your condenser looking? Maybe worth switching it out for a couple of bucks.
The connections looked a bit tricky as I remember - maybe relocate it.
As I said before, you probably have a few things contributing a weak signal voltage, I'd try to find and fix a...
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