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Lost All Spark DYNA S

  • Thread starter Thread starter alkswheetinjur
  • Start date Start date
Put my battery on charge while I got everything back together again. I'm now reading 12.89 at the coil but nothing has changed, still no spark anywhere. Ran a wire off my battery to the coil and it made my gauges and lights come on but did nothing for spark. This is driving me crazy the bike was running fine a week ago and now nothing. I've been reading everything I can on here but haven't yet found anyone with this issue.
 
due to old wiring and bad connections voltage may drop, even below a level that is needed to operate.
The modification Oldvet66 suggested, is a popular one because it provides a direct connection from battery to coils.

You are doing a good job in learning how the wiring is setup and cleaning up the connections.
That is something that needs to be done anyway.

My advice is based on finding a spark first and identify a problem next.
My approach is quick and dirty, and i fully understand people that choose another route.
The other suggested solutions are good, feel free to follow those advices, they will bring the same result.

What you need to see a spark are 3 things, and those can be ruled out as being a problem individually :
12 volt to coil, good coil/lead/cap/spark plug, and a ground to the coils that is interrupted.
For ease of use, i connect a wire from the plug threads to ground as in the movie i posted.
Just wrap the copper wires around the threads a bit better than that guy did.
You measured good values on the coils, but let's look for a spark.

Check the grounding cables from battery to frame and engine, clean rust or corrosion where needed.

11.72 volt may be good enough but just to be sure make a direct connection from positive battery terminal to coils.
Don't plug the regular power connection in also - just a wire from battery to the coil.

Plug a wire into the ground/signal connection on the coil and rub/tap it against ground.

If this does not produce a spark, you only have a few components to check for issues.
 
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alkswheetinjur said:
Ran a wire off my battery to the coil and it made my gauges and lights come on but did nothing for spark.
Click to expand...

so those did not work either ?
That is another indication of a wiring problem to be focussed on later on.
Could be a fuse is blown, or a faulty fuse box.
 
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Just installed a new Dyna S DS3-2 a set of NGK racing cables and plugs. I now have spark on cylinder #3 and only #3. I did another voltage test on the #2-#3 coil and it's only reading 1.30 volts on the trigger wire and 11.26 on the orange wire. The #1-#4 coil is reading the same 11.26 top and bottom (BUT NO SPARK!). Was on the phone with Dynatek earlier and the tech was completely baffled. I've checked for bad wires up and down the harness. This is starting to turn into a pricey fix. Any suggestions before I buy new coils that I may or may not need?
 
11.26V is probably not enough to properly operate the ignition. Fix your low voltage problem at the coils.
 
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