Does anyone have an idea as to where I can find schematics for Arctic Cat CDI systems? In particular the 1981 eltigre 5000 fc. I know she is old, but I like the machine and am getting no spark. The primary coils are good and the Headlight is lighting when I pull it over, but no spark. I suspect my CDI box, but am unwilling to buy a new one in case that's not the problem. Any help on schematics or testing procedures would be appreciated.