HCS Snowmobile Forums > CDI reprogram

tommcat

Mar 21 2005, 04:55 PM

i have an 03 ZR900 i would like the mountain cat 1M low altitude CDI for it but they are kind of expensive.does anyone know of a place that can reprogram the one i have?
thanks in advance

cobber

Mar 22 2005, 01:02 AM

I doubt there's anyone that does it. I don't think cat gives out the info needed. I wanted to repgrogram my CDI on my atv, but couldn't find the schematics. People finally started making them for atv's. To make your own, you'd have to test the ignition system with an o-scope and figure out your exact timing. CDI's circuits are just basically a variable timing circuit. Best bet would be to buy the one you want.

tommcat

Mar 22 2005, 06:53 AM

QUOTE(cobber @ Mar 22 2005, 03:02 AM)

I doubt there's anyone that does it. I don't think cat gives out the info needed. I wanted to repgrogram my CDI on my atv, but couldn't find the schematics. People finally started making them for atv's. To make your own, you'd have to test the ignition system with an o-scope and figure out your exact timing. CDI's circuits are just basically a variable timing circuit. Best bet would be to buy the one you want.

it costs about 500 bucks for the 1M box,for the couple horsepower they pick up i'm not sure it's worth it.

PushawZR9

Mar 22 2005, 07:33 AM

tomcat,

Be cautious with the mountian CDI at sea level. There were a few guys last year on amsnow that tried them and commented about a hot spot in the mid range at low altitudes.

tommcat

Mar 22 2005, 08:53 AM

QUOTE(PushawZR9 @ Mar 22 2005, 09:33 AM)

tomcat,

Be cautious with the mountian CDI at sea level. There were a few guys last year on amsnow that tried them and commented about a hot spot in the mid range at low altitudes.

good to know,thanks for the input