1977 Merc o/b rpm

[daveytheone]

I have a 1977 Merc 850 85HP outboard and am thinking of a re-prop from the 15 pitch on it now to something lower for skiing. My question is: does anybody know what this engine's manufacturer's recommended WOT RPM range is?

 

[steely51]

Re: 1977 Merc o/b rpm

there are a lot of outboards of that era with a range of 5000 to 5500 rpms and This would probably be safe but if you search around on line or call your local marina you could get the numbers as they appear in the merc manual