Moving the levers...
Sorry s299_Dave I mis-read your original post I thought you had written 2QM20 when in fact you wrote 2GM20... a model about which I know nothingI do have the original manual and I bought the official service manual when I bought the boat.I have an old single lever Morse control and it is pretty darn simple... centered for neutral, push it forward to engage forward gear then further forward for more throttle... the opposite for reverse...The owners manual states that only a single lever control is to be used, likely to avoid the possibility of shifting gears at any engine speed above idle.Hector, yes these are different models of Yanmar diesels.