Ignition

[2strokesforever]

Just wondering how good these digital CDI's are from Service Honda since aftermarket CDI's have caused me nothing but problems. Really wanting to find a igniton upgrade for my R that works good,is easy to install and setup,and most of all doesnt include discontinued parts. All info is helpful keep it coming.THX

[2strokesforever]

Interesting, thanks for all the info you have added to the site.

...x2

[2strokesforever]

Service Honda also offers the  kit to put a R motor in a 400ex frame http://www.servicehonda.com/service.html and the kit comes with a digital ignition but all it tells in the description is "16-bit processor in the ignition CPU provides fast data calculation and accurate timing for the solid-state 3-D map style digital ignition."

[2strokesforever]

Service Honda also offers the  kit to put a CR motor in a 400ex frame http://www.servicehonda.com/service.html and the kit comes with a digital ignition but all it tells in the description is "16-bit processor in the ignition CPU provides fast data calculation and accurate timing for the solid-state 3-D map style digital ignition."  Just wondering how good these digital CDI's are from Service Honda since aftermarket CDI's have caused me nothing but problems. Really wanting to find a igniton upgrade for my R that works good,is easy to install and setup,and most of all doesnt include discontinued parts. All info is helpful keep it coming.THX

[rsss396]

I snapped some pics of the back side of the BDT stator plate and 1 OEM 00-01CR250 stator plate and 1 electrosport plate modified to work with the CR500.

When electrosport makes the CR250 plate they did not cast the center raised area that creates a recessed ring.
The out side of the ring is all that is needed honestly for the stator to be centered and rotate around the crank seal part of the case.
Leaving this center out by electrsport helps the cr500 guys because they now only have to run a bushing or O-ring like I did to center the stator around the cr500 smaller crank seal.

Now I modified my electrosport plate to the same specs that I had machined on my previously modified OEM stator plate. But when I had previously done the OEM plate I cut it deeper than electrosport had cased it so I removed material from the center area to match, well I honestly never needed to modify the electrosport stator like I did, I just needed a bushing or o-ring.

So basically what I am getting at the same stator plate will work on a cr250 or a cr500 but the cr500 must run a spacer and obviously the TRX250R must run the standard CR250 adapter plate from ESR and others.

first pic shows the OEM on the left, BDT in the center and electrosport modified for the cr500.




this picture shows the electrsport modified for a cr500 along with a thick oring to create a bushing to take the difference of the stator ID and the cases crank seal that the stator rotates on.




this picture shows the same oring in the the BDT stator (sorry the pic blurred)




here is how the back of a OEM cr250 stator plate looks, if you notice the raised center electrosport does not cast this in and if you have a cr500 you remove the center section.

[rsss396]

well I just could not resist pulling the black shrink wrap back on the cdi and guess what? same numbers as Service Honda's :suspicion:




here is sevice hondas promo picture notice how the numbers are the same, wow why not just come out and tell everyone what you are selling?

http://servicehonda.com/cr500-ignition-and-light-coil

[2strokesforever]

well I just could not resist pulling the black shrink wrap back on the cdi and guess what? same numbers as Service Honda's :suspicion:




here is sevice hondas promo picture notice how the numbers are the same, wow why not just come out and tell everyone what you are selling?

http://servicehonda.com/cr500-ignition-and-light-coil

So this kit along with the ESR adapter plate is all a man needs to make this work?

[rsss396]

yes

[2strokesforever]

yes

thank you rsss396 for the info. I am so confused on which way to go when it comes to buying a updated ignition kit. There are so many ways to go so many pros and cons. But the Service Honda kit with a ESR adapter plate sure looks like a good choice with the option of running lights,more power and easier starting. That is if the CDI's with the SH kit are up to par.

[2strokesforever]

sorry for all the questions but to make this work on a TRX250R what about the coil? Use a TRX,CR250,CR500? Im not swimming in money so Im trying to figure what i need before I drop this much money and end up buying the wrong thing or getting it torn down during install and realizing I dont have everything I need.

[sameltoe]

Thank you rsss!

[363 stroker]

When ****** sent me this ignition and I inspected it I was convinced it was a service honda CR 500 ignition based on what I was looking at.  That is the main reason I sent it to rsss. I knew he would figure this out and I will test it and hopefully have a good answer for everyone.

[fearlessfred]

For some reason Im not surprised by these findings

[rsss396]

sorry for all the questions but to make this work on a TRX250R what about the coil? Use a TRX,CR250,CR500? Im not swimming in money so Im trying to figure what i need before I drop this much money and end up buying the wrong thing or getting it torn down during install and realizing I dont have everything I need.

I have tested a bunch of different coils on a bunch of different cdi's and I honestly have not seen any spark difference on my bench tester, I even have a couple high voltage meters and very little difference to none.

IMO I would just go with a cr250 coil and a Pumashine or ESR coil mount and cut one of the round female plugs off and crimp a new female flat blade connector on.

other wise you will have to make a custom mount or drill your frame to mount the larger cr500 coil.

[DnB_Racing]

I have tested a bunch of different coils on a bunch of different cdi's and I honestly have not seen any spark difference on my bench tester, I even have a couple high voltage meters and very little difference to none.

IMO I would just go with a cr250 coil and a Pumashine or ESR coil mount and cut one of the round female plugs off and crimp a new female flat blade connector on.

other wise you will have to make a custom mount or drill your frame to mount the larger cr500 coil.

Dave could you explain to me how to test, the coil output?
I have access to just about any type of meter available, and im wanting to learn how to do what your talking about..

obviously checking the coil resistance, and peak voltage...  but it sounds like somehow your actually checking the spark intensity...or are you just checking peck voltage with the different cdi's?? thanks
Barry