Well, the 4 wire race CDI I purchased did not work. As it turns out, it was an AC fired CDI box. Mine is definitely DC. When I plugged the race CDI in, it started to smoke so I immediately unplugged it and put my stock CDI box back in and the engine ran fine so, fortunately, no damage.

AIRMOBILE, did you purchase a high rev box or did you modify yours to work? In your pics, it looks just like my stock CDI box. Thanks for the info!

 

Sent yea a email Bspray29

 

You want to make sure yours is a 12vdc 4 pin cdi. With the bike running or not, take a voltage reading to see if any of the wires has 12vdc. If it does, then you have a 12vdc cdi box thats powered from the battery