1994 mariner 115, oil injection

Ifishmuskie2

Petty Officer 2nd Class
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Joined
Oct 5, 2025
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145
Before I ran it I replaced the thermostat and impeller and it’s got lots of cool water coming out the pee hole.
No signs of overheating on the head.
I ran it for the third time yesterday. Went about 30miles. It pushes the boat nicely so I’m cruising between 3000-4000rpm. 20to30mph. Wot is about 40mph
So I’m not running it hard. I want to run it in a gas saving rpm range anyway.
It’s a fishing boat so hopefully taking it easy will help keep boat and engine in good shape.
 

Ifishmuskie2

Petty Officer 2nd Class
Thread starter
Joined
Oct 5, 2025
Messages
145
It has a SS five blade prop but I can’t find any numbers on it.
 
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