KZ650 NO SPARK TO 2 AND 3 FROM DYNA S IGNITION

BeezyB wrote: Ok, looks like im dealing with a dead Dyna system then. I have tried just about everything I could imagine would be the cause of the problem and have got nothing....

What tests were performed?

Good Fortune!

I have tried swapping coil packs between the 1-4 and 2-3 to make sure both were working. out come was both were pefectly fine. Then i traced down the wiring made sure all connections coming from the dyna were redone. I have replaced all plugs, and fuses. Still need to replace the plug connectors but thats not a must at this point. I am sure i'm missing some of the things I have done (its all a blur at this point) but thats about all i know to check and do for this problem. If you have any other suggestions please fire away. (The lights are out in my head and I have no flashlight):blink: any advice is greatly appreciated!

BeezyB wrote: I have tried swapping coil packs between the 1-4 and 2-3 to make sure both were working. out come was both were pefectly fine. Then i traced down the wiring made sure all connections coming from the dyna were redone. I have replaced all plugs, and fuses. Still need to replace the plug connectors but thats not a must at this point. I am sure i'm missing some of the things I have done (its all a blur at this point) but thats about all i know to check and do for this problem. If you have any other suggestions please fire away. (The lights are out in my head and I have no flashlight):blink: any advice is greatly appreciated!

If not already tried ---

With black-wire coil firing outside plugs, and green-wire coil not firing inside plugs, here's one method to test for possible failure of the 3 o'clock Dyna-S module.

Remove all four spark plugs, leave the plugs connected to the coil wires, and hold all plug bases against the engine head so the plugs will remain grounded against the engine.

Turn ignition switch to ON position, and spin over the engine as if attempting to start it running.
Should be able to see the plugs sparking.
In the case at hand, the two outside plugs should be sparking (being powered by the black-wired coil).
And the two inside plugs are probably not sparking (being powered by the green-wired coil).

Let's see whether the green wire from the 3 o'clock module will fire the outside plugs from their same coil.
If so, the 3 o'clock module is probably okay.

To perform the test --- reverse the black and green wires to the coils. (This messes up the timing, which is immaterial to the test, because wanting to determine firing ability, not timing).

With the green and black wires reversed, and all plug bases remaining grounded against the engine head, spin over the engine as if attempting to start it running, and observe which plugs are sparking.

Are the two outside plugs sparking from the now green-wired coil?
If so, the 3 o'clock module is probably okay. Because that's where the green wire comes from.
But if the two outside plugs aren't sparking from the now green-wired coil, it indicates a problem with the 3 o'clock module.

If the two inside plugs are sparking from the now black-wired coil, the 9 o'clock module is confirmed okay.

Imo, when plugs from the same coil fail to fire, a failed module is only one of many more likely suspects.

Good Fortune!

I have done this by taking just two plugs out and grounding them to the block and testing the black wire from 1 and 4 to coild 1 and 4. That test indicated that I had spark, so i swapped the black wire with the green wire and i had no spark. I never tried to take out all four at the same time and test them out. Is this required to do this test properly or is the way i did it enough? Both coils fired just fine when hooked up to the black wire. Neither fired when hooked up to the green wire.

BeezyB wrote: I have done this by taking just two plugs out and grounding them to the block and testing the black wire from 1 and 4 to coild 1 and 4. That test indicated that I had spark, so i swapped the black wire with the green wire and i had no spark. I never tried to take out all four at the same time and test them out. Is this required to do this test properly or is the way i did it enough? Both coils fired just fine when hooked up to the black wire. Neither fired when hooked up to the green wire.

Your test as described is just fine.

If not already done, to help assure the green wire isn't broken internally, would use an ohmmeter to assure continuity in the green wire from its coil end to its module end (ignition switch OFF).

The red wire is obviously supplying switched voltage to the 9 o'clock module.
Would also use a voltmeter to assure that switched voltage from the red wire is also being supplied to the 3 o'clock module (ignition switch ON).

Good Fortune!

It has been awhile and but I just got back from vacation a week ago and am ready to get started on the bike again. I wanted to add the fact that cylinder 2 adn 3 would cut in and out for the past year or so until it was fully warmed up then would run great and at times would kick in and out spit and sputter... Would this be the dyna or could there be some other issues causing this? The carb boots are completely sealed up, carbs rebuilt, and jetted properly everything seems to be right. Just not sure why i keep losing out on 2 and 3. Any insight would be greatly appreciated.

BeezyB wrote: It has been awhile and but I just got back from vacation a week ago and am ready to get started on the bike again. I wanted to add the fact that cylinder 2 adn 3 would cut in and out for the past year or so until it was fully warmed up then would run great and at times would kick in and out spit and sputter... Would this be the dyna or could there be some other issues causing this? The carb boots are completely sealed up, carbs rebuilt, and jetted properly everything seems to be right. Just not sure why i keep losing out on 2 and 3. Any insight would be greatly appreciated.

Does swapping coils change any of the symptoms?

Good Fortune!

I have tried swapping coils before and still no spark to two and three. i am about ready to order a new dyna system (not sure how old the one is on the bike now) and go from there. I know its like throwing money at the wall and hoping it sticks but i am running out of ideas. At least this way i will know for sure if it is the dyna or not and go from there. Is there any other modules or switches that could be causing this or would it most likely be the dyna 2 and 3 has failed?

What coils are fitted?
What plug wires?

Are the original coils and/or plug wires still being used?

Still getting plug spark from either coil with black wire to primary?

Still getting no plug spark from either coil with green wire to primary?


Good Fortune!

I am getting spark to 1 and 4 and when i switch that coils 1 and 4 will spark on 3 adn 2 and vise versa. So both coils have spark when using the black wire as primary. Green wire gives no spark at all. I still have the original coils and wires (to my knowledge) and the plugs have been changed since i have owned this bike.

Maybe some info would help you out?
Here is the Dyna S trouble shooting pdf link: www.mpsracing.com/instructions/Dynatek/DynaS_Testing.pdf
And this is the Install instructions link: www.powercommander.com/downloads/Support...anuals/DS2-1_2-2.pdf

If you are not happy with the Dyna, and want to be point free, look at getting a good used Kawasaki electronic Ignition and wire it in.

Thanks for the link! I'll have to check it out tonight and see what i can find out. About the kz electricals i was looking around and the problem is getting a good one. At least when getting the Dyna you have some level of confidense that it will work.