What Is WOT RPM For 1981 90 HP Johnson?

Woodnaut

Chief Petty Officer
Joined
Jul 4, 2007
Messages
634
Can anyone tell me the WOT RPM range for a 1981 90 Hp Johnson. My buddy just bought this engine from a boat shop. It appears to be in very good shape and seems to be a honey of an engine.

Here are the engine specifics:

Model: J90TLCIM
Serial: J5493077

Thanks guys.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: What Is WOT RPM For 1981 90 HP Johnson?

5500 would be good.
 

bowman316

Lieutenant Commander
Joined
Oct 21, 2008
Messages
1,822
Re: What Is WOT RPM For 1981 90 HP Johnson?

my 81 70 hp evinrude is between 4500 and 5500 rpm. Def. nothing over 5500 rpm.
 

iwombat

Captain
Joined
Jul 12, 2006
Messages
3,767
Re: What Is WOT RPM For 1981 90 HP Johnson?

I'd revise that to nothing _under_ 5500 RPM. With today's fuel you're lugging the motor if you're any less. I try and target 5800 and when I get within a couple hundred call it good.
 
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