Merc 850 oil mix / max revs

Qld_Kev

Petty Officer 3rd Class
Joined
Dec 4, 2004
Messages
86
I have an Australian Merc 850 about 1977 model. I've been running it 50:1 but have seens in a few other posts talk about the older engines going 40:1, would this be worth while. Also what would be my max WOT rev range? Thanks..
 

Drybo

Petty Officer 2nd Class
Joined
Jun 30, 2005
Messages
145
Re: Merc 850 oil mix / max revs

Every one I have read say 50:1. Might want to bump your question.
 
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