Steve's 2005 CRF450 with QS138 70H V3 motor and EM260S controller final wiring and Test run 

This is wired with handlebar switches. The big ON/OFF button is the Sport button ON/OFF , easy to turn on and off without looking. Very Handy and saves the battery. You need the boost only some of the time, Mode 2 or 3 can give you enough most of the time.