Anyone know what the WOT RPM is for 1982 Johnson 9.9???

jwall55

Cadet
Joined
May 13, 2015
Messages
13
Trying to do some troubleshooting and one thing I was told was to check WOT RPM against what the manual says. Trying to find that out! Boat seems to be not up to 100% power at full throttle, but I am at about 5,000 elevation also, so trying to determine if engine is running correctly, or if something is wrong, or if I need to consider changes in prop pitch and/or carb adjustments. Any help is appreciated thanks
 

tomhath

Master Chief Petty Officer
Joined
Dec 5, 2007
Messages
814
I have a good running '81 9.9 with a 10" prop; on a lightly loaded 14' aluminum boat it turns right at 5000 RPM. Speed is in the mid-teens depending on the number of passengers.
 
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