Mounting engine

[mollysdad]

Hi gentlemen,

just replaced 20" 90hp w/ 125hp 25". ( really a great deal). Both used, cheaper 125 than rebuild 90 that said, pull toys behind 19' fish and ski.

The short shaft would " ventilate " so I figured longer might be better.

new A/V plate is about 3" below bottom of boat. havn't had inwater yet still chilly yet.

I have read post on this but not exactly sure how bad this could be.

thanx for your help.

 

[JB]

Re: Mounting engine

You need to raise it at least 3" to avoid extra drag.

Lots of things can cause ventilation. I don't think using a 20" (long) shaft properly trimmed caused your problem. My guess is trimmed too far out and/or set too high up.

 

[tashasdaddy]

Re: Mounting engine

agree^^^^^

 

[mollysdad]

Re: Mounting engine

thank you guys, thinking I'm going to try to find a "transom plate"( sic ) I saw on another post.

 

[Frank Acampora]

Re: Mounting engine

With a 125, make sure you do it well and reinforce it to take the loads imposed. Don't do it "half fast."