My old '76 Mercury 4.5 finally bit the dust. The wiring was all corroded to goo and it just wouldn't start anymore. Pulled the trigger on a brand new Tohatsu 3.5. Man this thing is nice. Probably about 20 pounds lighter than the Mercury, and it's a 4 stroke with an internal tank so no more mixing gas and lugging a gas can aboard.
So with the old 2 stroke, when done for the day and putting the boat on the trailer, I would disconnect the fuel line at the dock and run the fuel out of the carb, get the boat on the trailer and out of the water, then take the motor off the transom and lay it down on a carpet in the cockpit for the short (1.5 mile) drive home. That worked fine for a 2 stroke.
Now my new 4 stroke the manual says to drain the fuel before laying the motor on it's side. I'm assuming they mean from the carb and the tank but it isn't clear. There's a screw on the carb to drain it, but I don't know how I would drain the tank and I wouldn't want to anyway every time I trailer the boat. So I'm wondering if it's a really terrible idea to trailer the boat home on the transom? There would be a couple speed bumps going into and out of the marina. I have a 1/2 piece of white oak screwed on the outside of the transom where the motor mounts to give it a bit more strength. But I just don't know if it's kosher or not to trailer a daysailer with the motor mounted.
If I do need to take it off still, does anyone have a similar motor? How do you lay it down? I really don't want to be draining it every time, but I really don't want fluids leaking everywhere either.