Just instaled one on my 04, 800 rotax. Make sure you have the drl-300cdi box, the standard one will not work (take my word). Ther should be two wires for you ignition pickup, you need to find the one that has resistance to ground, i believe you white from the drl300 box goes to that one. The blue wire would go to your kill switch, black to a ground and i used power from my brake light switch for the red. When i have my brake pulled the limiter is activated, let off the brake and hold on.