250 cdi in 300?

[moff747]

Hi, just curious realy. I have an 02 ec300 uk spec, I have a cdi from an ec250 2001 in the garage and was wondering what effect it would have in my 300? Has anyone ever done this? Ive heard of 200 cdi's used in 250's.

 

[2 strokes 4 life]

You will get a more advanced power curve. Just like a 250 to a 250.

PEB has done this before and some other mebers I can not think of. Might not be as big as a 200 switch thoe.

 

[jostby]

In '00 they used more than 1 CDI on the 250's. I'm unsure about '01. They were differant between the EC and XC (later DE) models. The XC/DE used the more aggresive ignition curve of the motocross models. I am unsure if the EC cdi from the 250 vs 300 would have an obvious differance. Let us know if you try it out!

 

[widebear]

In '00 they used more than 1 CDI on the 250's. I'm unsure about '01. They were differant between the EC and XC (later DE) models. The XC/DE used the more aggresive ignition curve of the motocross models. I am unsure if the EC cdi from the 250 vs 300 would have an obvious differance. Let us know if you try it out!

Ive swapped 01 ec 300 with 03 mc-250, no diff as far as i can tell

 

[Berkyboy]

On the older model cdi boxes the color of the cable (the shrinkwrap protection around the main cable leads as they leave the box) is the key to the map programing.

I believe at the time they had yellow (200), red (mc250) and black (stock 250/300).

The black cdi was the most common and could be found on all 200/250 and 300s.

Maybe somebody else can enlighten on the color coding.

 

[GMP]

Steve,

Somewhere in there is a Blue coded CDI as well. I have a GasGas document from Spain at home with the color codes I have to dig up, but I think it was 125(yellow, verified), 200 (blue), EC250(red, verified), EC300(black). Also from what I have seen that started in '01. That said, I have doubts about the consistancy of this system. For example Cruiser and I both had '03 EC250s, with Red coded CDIs. The bikes were very soft off the bottom, and responded excellent to CDIs from '00 XC250s.

 

[widebear]

I'm absolutely convinced that the root cause of dissention around users of early LTR jetting kits was due to the existence of those oddball cdi's.I want one!

 

[PEB]

The Cdi on my 99 hac black wrap, on my 02 red and on my latest bike the 07 "2006 Cross" has been imprinted on the cdi box. No ideawhat it means but I like to think it is extra trick.

 

[GMP]

I'm pretty sure everything prior to '01 was black, so that was a real crap shoot.

 

[widebear]

The Cdi on my 99 hac black wrap, on my 02 red and on my latest bike the 07 "2006 Cross" has been imprinted on the cdi box. No ideawhat it means but I like to think it is extra trick.

Its prob junk, you better send it off to me so I can exchange it for the correct one.

 

[GG27]

I have a 250EC '08 model and I'm just curious on how you can tell the difference on the CDI since the catalogue states the same part number for ec 250/300 ec200 and mc250. After checking my cdi it seems to have black shrink wrap. Where on the cdi is the shrink wrap located?
Also, in the racing parts catalogue they list a "racing CDI" but it also has the same part number!

 

[GG27]

Do you think you can cross over Kokusan CDIs from KTMs?

 

[buzzard]

From my recent testing of CDI units on my 2002 XC250, I can tell you that these 2stroke CDI units do not have a "curve". At a specific RPM, they jump to full advance. It may be that the different units jump at a different RPM. I have used a Kokusan KTM CDI on my bike, It has the same wiring harness colors, and works fine. I also have a Kokusan shifter kart CDI, again same wiring harness colors, and it is actually my favorite ignition. All of these CDI units have seven wires, two from the pickup, two from the alternator coil, two to the ignition coil, and one to the kill button.


So yeah, if you can get your hands on a KTM two stroke CDI box, it will work on a Gasgas. Some of the newer ones use a multi pin plug, and I don't know if KTM and Gasgas use the same plug. I intend on finding out.