I don't know how to time my machine. Had a needle strike that seemed to have messed with the timing. I can't use a generic video or info to time this machine as the bobbin race operates differently from machines that I have yet dealt with. The bobbin race does not rotate once around. After picking up the thread, the bobbin race does a little more than a 1/2 turn into on direction, drops the thread and turns back the 1/2 turn (as opposed to rotating once around to complete a cycle). The manual doesn't specify anything. The guy that I bought the machine from doesn't know either. Maybe you guys can help.