125-200cc CR Ignition Resitance

Can anyone out there with a CR125/250 do me a huge favour & test their igniton for me & tell me the resistance between the red/black & red/white wires coming from the stator.
Regards

You should have between 23 and 28 ohms.

Thanks Wal, your a legend.
I have 20 ohms so its pretty close.
I wonder what sort of resistance variation there is between stators?
Does any one else have a reading?

I have tested quite a few 125 cr exciter coils and haven't had one yet below ~22 ohms. 20 seems light and you could have a problem generating a low rpm spark with that little effecive windings. It is very possible you have a short across some of the windings. When I have re-wound exciters I usually end up with 26-27 ohms. I am adding about 10% more windings on each pole and it is giving me a nice healthy spark at kick over rpms. I will see if I can find an "official" resistance value for you.

Are you testing a CR250 ignition? They are different.

It's a 1999 CR125 stator

Thanks again Wal,

I'd like to compare it to what we have.

I have been playing around installing the CR igniton conversion in my 95 WR125
I have a complete 1999 CR 125 ignition, unfortunately the exciter coil on the stator was shot.
I've had experience rewinding motors many many moons ago, so I decided to give it a go & rewind it.
I had no idea of the resistance value so I set about it the old school way.
(This is about the time I should have posted this thread, not after I rewound it )

I cut & counted the windings around the posts, 420 turns x 0.25 mm (32AWG)I sourced some enamelled wire, the closest size I could get to the original windings. 0.26mm (31AWG) was all that was available. I hand wound 420 coils wound on both posts, then tested & found 20.5 ohms,epoxied it up, baked it, then soldered it all together then installed it & it runs.

I think the change in diameter of the wire may be responsible for lower resistance, I doubt it if I could have wound much more onto the posts with this size wire. Using a smaller gauge wire would allow me to get the extra 10% or so more windings you speak of onto the posts comfortably to bring the resistance up to 25ish ohms
So who knows we will see how it goes.

Next to wind the lighting coils on as well. Any ideas on that one mate?