Good info. Ron! Also,I would say for anybody to use a timing light to set the final time AFTER ascertaining that the timing marks are CORRECT.Which they were 20 degrees OFF on my Franco-Morini the other day.If your timing marks are off as mine were,you will have to find TDC and measure accordingly or mark the magneto-flywheel at EXACTLY the distance listed in your manual before piston hits TDC.If I hadn't found Franco-Morini's mistake I'd have been timed 20 degrees slow forever.I NOW check the marks every time before hooking up the timing light.