"If you dont have a oil pan dr
"If you dont have a oil pan drain plug than the next best is the drill pump Joe suggests.
The typical pump location is a plastic tube down the dipstick tube.
Depending on the pump kit, you may have to go to the hardware store and get a length of clear nylon tube as big in diameter that will fit down the dipstick tube. The nylon tube will tend to curl up so heat it up over the ol'ladys stove to take the curl out of it.
Along with warming up the engine before pumping, you may want to jack up the boat/trailer so oil collects on side of pan the dipstick tube is loacated.
If you have to make some adapto gizmo to get the suction side to the correct diameter, make sure there are NO air leaks on the suctuon side of the pump. Any air leak on suction side will inhibit the suction."