Test them.

 

Ive never tested stators or coils before but ill look into that thank you for the help

 

Get a service manual and use it to troubleshoot the ignition system. It can be a very simple or a very complex process. Depends on how everything needs to function. For example, one ignition may need to be ungrounded to fire and one may need grounded.

 

45 year old sled gonna need sump'in.

 

Biggest killer of "spark" / CDI box is Regulator / Rectifier. If you had no spark, installed a new Kimpex CDI, pulled once and had spark, then pulled again and no spark ? Chances are your Reg /Rec is toast and just burnt up the new CDI.... Rule of thumb: Chage CDI..... Change Reg / Rec at the same time.

 

Does that mean my old cdi may still be ok?

 

First of all I wouldn't completely depend on a aftermarket CDI box.
That sled has a closed ignition system. So unplugging the main wiring will cause no spark.
Check your ignition switch, and kill switches. You want to see a complete circuit with switches in the run position. Use a multi meter set to ohms to test.
Check for a broken wire.
Check your coil.
Check test the stator coils. Coil specs are as follows..
White to black= 148 ohms
Red to black= 148 ohms
White to red= 1.92 ohms
Excessive ohms will blow CDI boxes.
Brown is ground. the brown wire grounded to the stator must have a good clean connection, or you will not get spark. ( closed system ).
If ignition switches, wires, and coils test good than try a different CDI.

 

Can you send me your phone number and i will call you what think it is.

woodor@mymts.net

 

On 79 trail cat it shows in manual.black to white 1.9 ohms and 148 red to black. This is from 79 trailcat service manual.

 

I believe arctic cat ignition switches operate just the opposite of polaris ones, so you want to make sure their all plugged in, and not disconnected.