looking for ANY info on 1969ish OMC 120 I/O

Fuzzydog

Cadet
Joined
Aug 30, 2004
Messages
20
My rebuild is almost done! glasswork is all done and the engine is in. Now I have to hook it all up, check seals and get her in the water.<br /><br />Does anyone with a similar unit have any information they could share with me?<br />Specifically, I am wondering what rpm I should be running at - it's a 120hp GM I4. It ran well when I pulled it out. I have a manual (clymer, I think) and can't find any WOT or redline info.<br /><br />TIA
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: looking for ANY info on 1969ish OMC 120 I/O

4000 to 4200 you can crowd 4400 high end with the boat in light condition if you ski or haul heavy loads
 
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