spacemonkey77
Seaman
- Joined
- Nov 16, 2015
- Messages
- 62
I have 1979 25 hp evinrude model 25904r that's in excellent working order an I'd like to keep it that way. My question is that currently when mounted on my 1975 Lowe line Jon boat the anti ventilation plate is about 2 inches below the bottom of the boat. I'm under the impression that the anti ventilation plate or cavitation plate should be just about flush with the bottom of the boat, so I purchase the th marine mini jacker to raise it up! But before I do so I want to make sure I'm not making a mistake. The water intake on this model is on the fin/exhaust exit that sticks down below the vent plate behind the prop, but I noticed that there is a plate with three holes just above the anti ventilation plate. From the schematics it's called a water bypass plate. Upon interior inspection it is tied to the intake that's below the ventilation plate. Does this plate need to be submerged when the boat is on plane or at wot? Is this motor designed to be mounted with the anti ventilation plate an inch or two lower than the bottom of the boat?
See picture below!
See picture below!
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