does anyone know the oil to gas ratio for a 1981 90hp johnson OB engine.
M mtruffa Recruit Joined Nov 22, 2006 Messages 1 Nov 22, 2006 #1 does anyone know the oil to gas ratio for a 1981 90hp johnson OB engine.
E ezeke Supreme Mariner Joined Sep 19, 2003 Messages 12,532 Nov 22, 2006 #2 Re: 1981 Johnson 90 HP OB oil to gas ratio TCW-3 Oil: 87 US octane Gasoline = 1:50
S Scott T Cadet Joined Nov 19, 2006 Messages 11 Nov 23, 2006 #4 Re: 1981 Johnson 90 HP OB oil to gas ratio 50 to 1
