KZ650 NO SPARK TO 2 AND 3 FROM DYNA S IGNITION

I am having some problems with my electrical ignition system. I am not gettin any spark from 2-3 but the coils when switched work just fine. I checked the green wire coming from 2 and 3 on the dyna s and it has no charge. Would this suggest that the dynatek itself is bad or could it be something else causing this issue? The bike was totally rebuilt this winter and ran fine at first then started jumping around upon start up and eventually 2 and 3 started failing on a regular bassis and would at times kick on out of no where and bog back down. Dont really want to spend 200 on another system if this is not the only cause. I have swithced all connections for the dyna system knowing some of the connections could of been back and still nothing. Any imput will be greatly appreciated!

Since you haven't used the unit much or had it more than 1 year I would call Dynatek and ask them for a replacement. Do you still have the points / condensers system so you can ride? I would keep the original system handy as a backup since the electronic systems can hard fail. Ed

The dynatek ignition came on the bike. I have a set of points somewhere around the house though because I had bought them not knowing the bike had been converted by the previous owner. I have put over 1500 into this bike over the winter converting the front end to a modern 08 gsxr1000, new exhaust, pods, carbs everything has been gone over and am not looking forward to putting much more into it at this point. It sucks building something all winter get to the finish line and bam stopped in your tracks with nothing to show for it and no solution in sight.

The reported problem appears to result from a failed trigger signal (for whatever reason) via the green wire from the Dyna-S module to the coil terminal.

If not already done, would assure that the head of the screw where the green wire attaches to the coil terminal is not shorting against the coil mounting spacer.

There are different options for insulating the terminal screw head from the coil mounting spacer.
I use nylon tie wraps that work well and have lasted forever. See pic.

Good Fortune!

Patton I will be sure to check that out when i get home but i think the problem is occuring before the coil itself. When i was swapping out the coils to make sure both were in working order. i accidnetally left the key in the on position and when i connected the black wire to the coil i noticed a little spark between the black wire and the connector. This did not occur with the green wire only the black wire coming form the dyna-s. Any reason why this might happen?

BeezyB wrote: Patton I will be sure to check that out when i get home but i think the problem is occuring before the coil itself. When i was swapping out the coils to make sure both were in working order. i accidnetally left the key in the on position and when i connected the black wire to the coil i noticed a little spark between the black wire and the connector. This did not occur with the green wire only the black wire coming form the dyna-s. Any reason why this might happen?

Likely depends on position of the Dyna-S rotor which determines whether the particular signal wire is grounded or un-grounded.

The magnet embedded in the Dyna-S rotor aligns with the 3 o'clock pick-up module to un-ground whichever coil fires outside plugs #1 and #4. And aligns with the 9 o'clock pick-up module to un-ground whichever coil fires inside plugs #2 and #3.

It is the un-grounding that causes the coil to fire.

Good Fortune!

Well that makes sense, I never really understood how these electical ignition things work (it was already there when I got the bike) but I am starting to build an understanding. I will try my luck again tonight and see what I can come up with. Could the magnet me in the wrong position possibly? I did take the dyna plate off and look at the spring behind it to make sure that was moving and not getting hung up. I never paid any attention to the magnet, and where it was positioned.

Thanks for the advice Patton

With the key on, engine not running, both coils should be hot and should generate a spark at the terminal when you connect it.
The Dyna only interrupts the current flow when there is a signal (aka change of state), which means it has to be moving.

Loosing one side (or coil) is a common Dyna S problem, I've had three used Dyna S kits and all three had one side dead. It would work for a twin if only one side is working though

if this is such a common problem with the dynatek systems, would switching the bike back to points be the more feasible solution? At least if the points fail you can swap out a $30 piece and be on your way. Im not looking forward to spending $130 every other year if this is common. This isn't the first time i have heard of one side going dead so it must be fairly common.

BeezyB wrote: ...Could the magnet me in the wrong position possibly? I did take the dyna plate off and look at the spring behind it to make sure that was moving and not getting hung up. I never paid any attention to the magnet, and where it was positioned...

Removing and replacing the Dyna-S mounting plate should not affect the rotor position.

When the magnet is facing toward the 9 o'clock pick-up, should be able to see the advancer timing marks for 1/4 through the inspection window.

Good Fortune!

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. So looks like upon return from my vacation I will be ordering a whole new dyna system and go from there.

BeezyB wrote: if this is such a common problem with the dynatek systems, would switching the bike back to points be the more feasible solution? At least if the points fail you can swap out a $30 piece and be on your way. Im not looking forward to spending $130 every other year if this is common. This isn't the first time i have heard of one side going dead so it must be fairly common.

It's not a common enough problem to discourage the vast majority of users who are more satisfied with and consider Dyna-S superior to points.

Performance-wise, a fresh set of points and condensers, properly set up and timed, will match Dyna-S.

A main consideration for many folks is the far less maintenance needed with an electronic ignition (such as Dyna-S which happens to be a popular replacement).

Good Fortune!