The thermostat on a 150 Mercury Black Max outboard motor is typically located on the cylinder head or the thermostat housing, which is usually situated near the top of the engine. To access it, you may need to remove the cover or housing that protects the thermostat. Always refer to the owner's manual for specific instructions and diagrams for your model.
about 170 kg
what does a 1991 mercury 150 outboard weigh
1986
The 35 hp Mercury outboard has a dry weight of 148-150 lbs., depending on year model.
50:1 or 16oz of oil to 6 gallons gas
A 150 hp Mercury, serial number 5976483, is a 1982 year model.
The 1991 Mercury 150 horsepower outboard motor weighs just over 400 pounds. The average weight of the motor, depending on the version, is between 390 and 404 pounds dry.
roughly 380lbs
the thermostat on most mercury's is located just above the muffler. must remove exhaust pipe and muffler to reach thermostat. good luck.
http://www.outboardrepairs.com/year/# try this
1-1/2x16
1980-81.