Webfeb 6, 2008 · here's a page that will tell and show how to set the timing on an evo and what the timing marks look like too. Setting ignition timing on your harley. Webthe tdc [top dead center] mark is used with a dial back timing light to check the timing, or to set the timing at a specific degree, such as 37`. The advance timing mark is used to. Webjun 21, 2020 · if you ever timed a harley you know how hard it is to see the…