mercury inline 1975 breakin oil mix ratio

procraftguy

Petty Officer 2nd Class
Joined
Jul 7, 2013
Messages
137
Whats the oil mix ratio for breaking in a fresh rebuilt inline
 

MTboatguy

Fleet Admiral
Joined
Jul 8, 2010
Messages
8,988
I just look at one of my old merc manuals and it stated 25:1, variable throttle up and down, no WOT for the first few hours. Of course that is for a new motor, I would assume it would be the same on a rebuilt.
 
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