This is the complete kit for '04-05 CRF250X models only. For the '06+ CRF250X and CRF450X use the full kit 19000KSCD00.
This is a Do It Yourself kit. Instructions are minor and don't include all possible considerations. In some model years you will have to run hot and ground wires from your battery. If you are not familiar with this type of electrical work have a qualified mechanic install this for you.
NOTE: The CRF shown in the picture is not included in the fan kit.