Kokusan ignition problems

Hi,

I hope someone can help me. Maybe one of you made some experiences with the kokusan ignitions.

I have got a problem. I adapted a kokusan ignition from a KTM 520 exc to my 2002 Berg.
It worked really good for 5-6 hours, yesterday on a race it failed.
I think it has to do with the ignition. The engine just stopped, like as someone switchs my kill button. The engine fired again after waiting for 5 minutes.
Maybe the system cooled down and afterwards the spark plug fired again.
Can it be? I don´t know. The KTM iginition runs in oil and the Husaberg ignition runs dry.
Is that a problem? Is there a known problem of too much heat that spoils the function of the kokusan ignition.
And when it is, what is blown? The stator coils? Optical I can´t see any damage.

Thanks

hribman

Photos will follow. But I don´t know how to put them on this page.

Greetings

hribman

Hi,
there has to be a reason why Husaberg or rather KTM changed to Kokusan in 2004.
I for myself had enough experiences with the SEM ignition. In numbers: I´m riding Husaberg for 3 years. 4 or 5 failed stators. Thats not only annoying.
Now it´s time for a change. I think the Kokusan ignition works on the Husaberg, but it´s not at optimum state. I have to work a bit on it. The stator hasn´t the right position inside the rotor. Not centered exactly.
I have to make a new adaptor with a bit more precise thread holes.

@twistthethrottle:
I have bought the ignition on ebay. Rotor from a LC4, because of the markings for TDC. CDI, ignition cover, stator and coil from a 520 exc.
And a little thing, I don´t know the english description, in german called "Hallgeber".
All in all it costed 140 Euro. Normally I would be forced to spend this money for a half piece of a SEM stator.
I was inspired by a german Super Moto team who is using the adpated version for months. The mechanic told me that it´s not that easy, but with thinking about it and activating some brain
I had some first success.


Greetings

hribman

Hello there,

I got it.
There came off some soldering joints in my stator.
I think they have lost their connection because of too much heat
in the ignition cover, because of friction between stator and rotor.
As I said before, my first adaptor plate wasn´t build too precisely.
I made a new one and now it fits. Hope so.
I have resoldered some cables and now I hope it will last a bit longer.
I´ll see.

greetings

hribman

Hi,

if it is so I will accept it.
I´ll see how long it will last.
There is one advantage: The Kokusan stator is easy to fix.
You can resolder it, and even when a coil is damaged it seems to be
easier to rewind. So what shall happen?
It´s better than a failed SEM stator, anyway.
Now I´m going to do a long-term test..

greetings

hribman

Hi,

thanks for your idea but my heat problems are obviously gone.
The Japenese do not solder as good as we do. :wink:
Resoldering the cable connections was a great success.

thanks and greetings

hribman