You'd burn it up the first outing.
Cavitation/ventilation.
You really need to either cut the transom or have a bracket.
I've not looked at the possibility of adding a fixed jack plate, mounted upside down (or backwards) in order to accommodate a short shaft on a 25" transom (as opposed to a long shaft adapted to a 20" transom). It's possible the 5 or so inches of setback might work. One definite problem would be the likely inability to tilt the motor up appreciably. The cost difference in a 20" motor plus the fixed jack plate would probably be the same as a 25" engine.
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'75 Cuddy with '00 Johnson Ocean Pro 150 horse
Benny
Last edited by tsubaki; 12-02-2009 at 05:59 PM.
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