Howdy again. I want to winterize my Johnson 35 RD-21 (1959) pretty soon. I know I need 90 W for the LU, but without a manual for this motor, I don't know what weight oil I should use. Can anyone give me a clue? Thanks in advance.
Howdy folks, I just bought a pontoon boat with a Johnson Super Sea Horse 35 on it. The previous owner says it is a 1966 model. Of course, there is no manual with the motor, so I am researching to find such a manual. The closest I can find is for the 33hp model in 1966, but no listing for a...