Mdl. 3206 Yerfdog Spiderbox
 

Have overheating problems at the regulator. Have burned one up; have burned connector on it another time. Runs and does not heat up at medium and less speed but get real hot at high speed. Anybody have any idea why this overheating is taking place? Connections appear to be making good contact. New wiring harness and all electrical parts replaced including regulator.