Can anyone kindly explain the choke operation on a 1998 Merc 90ELPTO? I
just bought a used boat with this motor and I would like to know the
"correct" way to start the motor with the choke, and how the choke
works. What I was told by the salesman was the ignition key can be
pressed in to "engage the choke". Does pressing in the key BEFORE
cranking the motor "preengage" the choke? Does pressing the key in
squirt gas in the carbs each time it is pushed in? Or does pushing the
key in just enrich the mixture while it is pushed in? Should you press
the key in once and then crank? Or do you have to hold the key in while
cranking, and then maybe a little after it starts? What about the "fast
idle" lever? What is the best way to work that into the procedure?

I think I would have better luck starting the motor if I actually knew
what was going on with the choke!

Thanks in advance...