dyna coil testing

[mvalenti]

I replaced my coils years ago (7+) with 3.0 dyna coils. went out for a ride last week and sounded like i dropped a cylinder, plug fowl I thought. I knew the ignition wires needed replacing so I got a set. I went through the connections at the coils, checking for any loose or damages wire, cleaned up contacts etc. I then went to test the coils, turn over look for spark, had an issue on the 1-4 bank. swapped wire still no spark. Pulled coil off and proceeded to ohm it out 3.5 on primaries, 13 on secondary. per dyna, I should see 13.5-14.5 on the secondary. Of the 2 secondary outputs, the rear one is exhibiting this problem. Would this small drop cause a failure? No open or shorts detected.

 

[tom203]

That sounds ok.....if you are still using the original Suzuki ignitor setup, I?d suspect that.

 

[mvalenti]

That sounds ok.....if you are still using the original Suzuki ignitor setup, I’d suspect that.

Thank you for the response. I upgraded the ignition system with a dynatek. The odd thing is that only 1 of the 2 secondary's work. My understanding is that both should fire at the same time.

 

[mvalenti]

Update. I decided to contact (email) Dynatek to see if there were other tests I could run. They responded that its possible for the coil to appear to be in spec (Ohm) and still fail. They responded within 45 minutes, outstanding in my book! They offered to take my 7 yr old coils for inspection and replace them with new ones $100 out of my pocket.. Outstanding... Kudos to Dynatek, great product, and great customer service!