RE: DL50 Ignition timing setting guide.
Right after that it says;
<font face="Times-Roman" size="2"><font face="Times-Roman" size="2"><font face="Times-Roman" size="2"><font face="Times-Roman" size="2"><p align="left">For Adjustable Magnet Rings:</p><p align="left">Turn magnet fixed ring Counter Clockwise. When you see the plug firing, stop and lock down the ring, the correct ignition timing is now set. (28o ~30o.) The plug will fire as the magnet passes slightly past the Hall Sensor, this is a normal condition.</p><p align="left">For Fixed Hall Sensors:</p><p align="left">Try to use your existing hall sensor mounting holes, if this is a conversion you will need to estimate the hall sensor position and drill and tap your own. The holes on the hall sensor housing are ovular and allow for some adjustment.
It doesn't give directions at all for checking what your timing is currently set at. To do so, set up the degree wheel as described, on 0 deg.with crank at TDC,and alwaysrotate the engine in the direction it is supposed to run and watch for the spark.</p></font></font></font></font>