Setting Valves On Yanmar Tractor
There are many schools of thought on the best way to set the valves on a 4 stroke engine. Some books recommend that you align timing marks & check for top dead center of a certain cylinder. I have had the opportunity to work with some of the best Cat & Deere mechanics around and the method below is the way they have all used. It is simple, it works on all engines, and you don't need a manual to find timing marks or which cylinder should be TDC.
How It Works: