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I could really use some electrical mentorship.

  • Thread starter Thread starter wkmpt
  • Start date Start date
I know nothing about dyna s

I know nothing about dyna s

wkmpt said:
Following that, tested all cylinders, here's the results:
#1-strobe fires only when I release the starter button, or not at all.
#2-strobe fires only when I release the starter button, or not at all.
#3-strobe fires normally, in time with the ignition.
#4-strobe fires normally, in time with the ignition.

Does that seem weird?
Click to expand...
Yes...
coils 1 & 4 fire at the same time. 2 & 3 fire at the same time
so if #4 is firing... #1 is firing at the same time (wasted spark system)

swap no# 3 & 4 spark plugs with 1 & 2.
does the strobe follow the plug changes?


wkmpt said:
[Related to that, do I read those resistance values as 32,300 and 25,200 ohms, respectively? Is that correct?]
Click to expand...
Yes.

***edit*** the 32.3 and 25.2K measurements were plug cap to plug cap, correct?
 
Last edited:
I'd say the wiring to the coils is wrong. I may be wrong but I think you have the cylinder numbers wrong in your earlier post.
I think you have one of the coils cross wired negative-positive.
I'd love to be there to help you.
 
chef1366 said:
I'd say the wiring to the coils is wrong. I may be wrong but I think you have the cylinder numbers wrong in your earlier post.
I think you have one of the coils cross wired negative-positive.
I'd love to be there to help you.
Click to expand...

Who knows; if he followed my Coil Relay mod tutorial, there would have bee no reason to touch the coils or the connections to them.

There may be multiple problems. Obviously 2 and 3 are common at the coil and 1 and 4 are common at the coil. so more than likely he has his high tension wires crossed.

Assuming the above, it sounds more like he has two separate power wires to the Dyna (4 total); some only have 1 power which is common to both units on the breaker plate. He wired one correctly and the other is connected to the signal that powers the relay coil.

He should double recheck his mini harness connections.
 
Last edited:
wkmpt said:
Okay, I have my grubby paws on a strobe timing light.

I clipped the inductive clamp onto plug wire #1.
Click to expand...

IIRC, some of these inductive timing lights may require a specific side of the inductive clamp to be facing toward the spark plug. Just wondering if on the waste spark side of the coil wire, do you have to flip the inductive clap over? :confused:
 
pdqford said:
IIRC, some of these inductive timing lights may require a specific side of the inductive clamp to be facing toward the spark plug. Just wondering if on the waste spark side of the coil wire, do you have to flip the inductive clap over? :confused:
Click to expand...

I'll try flipping the clamp, in addition to making sure all my wires are solidly connected at the correct spots.

I have the three-wire Dyna S. White wire, black wire, red wire, with the red wire shared between the modules.

Thanks everybody, I'll keep you posted.
 
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