Welcome to the forum! If the governor is fully relaxed go clockwise till it has some tension holding the governor closed. Install the carb on the machine. make sure the spring from the governor is installed in the throttle body from the control cable. also do not tighten the bolts for the carb too tight just snug because it will cause warping and can bind the governor. Start the machine. You can use a handheld tach if you want, but i just go by sound on the rpms. 3300-3600 i think is the operating zone. I always start with tension but not too much tension and adjust clockwise till it sounds right. Hope this helps! thanks for stopping by!