If it is a 4 cycle engine use SAE 30 weight 100% synthetic.
A 35hp Mercury outboard, serial number A184641, 1985 year model.
1982
Ahhh 10HP
my 1979 35hp Johnson is 50/1
18 - 20 ft/lbs
The FD 16 A is a 1962 model 18 Hp motor.
A 35hp Mercury outboard, serial number 6445947, would be a 1984 model.
Model number 35702H, would be a 1977 year model Evinrude outboard.
The water pump is inbetween the lower unit and the motor . Remove the lower unit with 6 bolts and u will see it.
This is a 35hp Johnson outboard, 1984 year model. Thanks for the info. Most helpful Cheers scorpio48 (Pete)
The 35 hp Mercury outboard has a dry weight of 148-150 lbs., depending on year model.
I have the original gas tank for the same engine and it says 5 ounces per 5 gallons..