I have rebuilt the carb on an 031AV and it started great. Flipped Stop/Start switch to "Stop" and saw kept running. Pulled plug wire to kill saw. Today I dismantled saw to clean it and investigate the switch. All was there was the switch and on the back looked as if there was a hole to plug a wire in but no wire found or in sight. Is there suppose to be a wire that plugs into the back of the Start/Stop flip switch. If so, where the heck is that wire, where does it originate? I am totally clueless!