The MT-IGN-REV 99-02 RACER rev-limiter was designed for ALL 1999-02 Sea•Doo watercraft with 951cc R.A.V.E. engines only. (Carbureted Models ONLY) The TPS Instructions Sheet Below is to help you understand the function of this switch and aid you in afjustment of the switch if you have replaced your throttle with an aftermarket one!