Remove old oil and replace.
Boat water oil. Just as you wouldnt drive your car without engine oil you wouldnt want to take your boat out for a ride without proper fluid levels. Though each one is small in volume oil spills from small vessels add up. Likewise you probably know weather.
Lots of info on 4 strokes making oil I always run mine wide open for a while after trolling a lot. I would remove the box and split the casing to clean out the gears and casing. Drain and change oil and filter again run engine check oil for water.
Oil Spill Recovery Boat has excellent marine qualities and can also maintain a high level of efficiency in the open sea. I would not pay for a surveyor to look at the boat until you have a signed price agreement. Boats can affect water quality in a few different aspects.
The main purpose of the oily water separator is to separate the hydrocarbons from oily water coming from the bilge of a ship and deliver a cleaner effluent that can be discharged overboard. Prevents oil from escaping through the water outlet. Two stroke motors can emit 25-30 of their unburned gas and oil mixture into the water.
It is based on smoothed particle hydrodynamics SPH - Langrangian method of fluid simulation. When I run wide open to the fishing spot and back on my larger motor that takes care of it. If playback doesnt begin shortly try restarting your device.
Oil floats on water so it will be at the bottom of the casing. Remove plugs one at a time look for water and crank to see if there is water in the cylinders. If its a milky color or you can see water in it that means theres a leak somewhere in the systemstop right there and take the boat to a marine mechanic for service before you use it again.