I have used a pump
like that to empty the gasoline tank on my runabout at the end of the season into 5 gal jugs which I then burned in my wife's car. I was never able to get a good seal where the hoses enter the pump, and it also leaked at the piston rod seal. It is now buried in the county landfill.
This is what I use to suck the oil out of my Yanmar
3HM35F (the high compression
version of your engine).
The brass dip tube is the largest diameter brass tube that the local hardware
store had that would fit through the dip stick hole on the engine. It has thin walls which means that it has the largest possible inside diameter for the lowest fluid friction when pumping out the engine oil. It is soldered into a drilled out tubing barb that is itself inserted into a hose which is itself connected to a hand pump.
The hand pump is a Little Pal Brass Hand Pump (https://smile.amazon.com/Industries-...5804189&sr=8-2
) which came with its own smaller diameter dip tube. The hose clamps you can see in the picture stop some leaks
or tighten joints that when well oiled can expectantly come apart.
When not in use the whole oily mess stays in a plastic Rubbermaid box with my oil filter
pliers and a few paper towels that soak up the residual oil. The box has its home on top of the water heater