Ign maps

[rsss396]

heres is the Service Honda / BDT lighting coil CR ignition with added timing

[matt250r21]

Thank you for all this info!

[rsss396]

Here is the results from the ESR mounting plate and 2002-2003 CDI's The curves kind of surprised me that they were shaped like they were but I double checked everything and this is what I came up with


Here is the 00-03 CR250 CDI's grouped together:







Here is with the 00-01 CR125's added in:










Here is what the 02 and 03 boxes look like with advance built in by adjusting the stator plate, the stator plate will allow you to add about 4 degrees of advance.

[rsss396]

UPDATE:
I had a chance to check a actual Service Honda ignition last weekend and as predicted it mapped exactly the same as the BDT ignition, but there is one difference in the kit and that is the fact that they have a stator mounting plate that works on the cr500 not the cr250.
So in order to use a Service Honda kit you will have to swap the stator mounting plate or machine the service Honda plate larger to the size of the cr250.
Just one note in order to swap the stator plate to a cr250 you would have to cut the wires of the stator and re-solder them after mounting the stator on the new plate

[rsss396]

[rsss396]

I have checked Jon's 1998 CR250 ignition looks pretty good its pretty consistent with the 00-01 curves with about 2 degrees less advance so all Jon needs to do is advance the stator plate a couple degrees and he will be almost exactly the same.

[udontknowme]

would a 125 cdi have any advantage on a 250 or 300cc engine ?   im contemplating trying a '08-'14 125sx box on my 300. currently im using a '13 250sx box. it works good but i wonder if 125sx box might work even better. as far as i know no ktm guys have tried it yet, atleast not that ive heard about.  since the boxes unplug from the wire harness i wont have to swap any other parts, just the box itself which only takes a moment to unplug and plug back in. problem is the box is $200. kind of spendy just to see if it might be slightly better or maybe worse

[rsss396]

I would think ktm has optimized the 300's curve for ther port timing, head design and pipe

I like the 2000 cr125 on motors with more port timing and higher rpm pipes

[GO OVRIT]

Is that 98 cr250 digital?

[rsss396]

I am not sure if the 98 is digital or not but it seamed to have a good spark

[T8R6X]

From all that I've found the 97 up are digital I'm using a 99 2+ advance and love it!

[Honda863]

I have a cr 125 CSI and am wondering what year it is?? The pet number is 071000-1580 thanks in advance.

[jadleybray]

Well snap, who saved all the maps?

[Piney0]

This is the only one I saved.  I wish I saved more.