Hello , I just picked up a 038 AV i can get running with squirt of gas in carb and then install air filter without choke while idling. So i figured out need to install OEM Cam lever switch & OEM air filter with choke device in filter. Also i can not shut if off, Black wire on handle switch makes contact with metal ground tang on body. What is supposed to ground out to kill engine? Copy of service & parts manual would be great also... I am new to site also thanks in advance for help