18 bayliner trophy repower f 115

nice repoweer he will like f115 yamaha boat doctor

[@tintdr]

A Kurt so my uncle broke the shaft inside the engine of his 2 strike 135hp. It had a 13x21 stainless prop on it on this same 18 ft trophy boat and it flew. He repowerwd with a 2020 115 merc 4 stroke and he wasn't able to get on plane with the old prop. I thought maybe the props pressed in bushi g was bad and went to the store and boat a smaller 13x19 aluminum prop with a replaceable hub. I know my 26 cc with twin 115 yamaha 4 strokes I ran stainless 13x19 on that and the max rpm would hit 5600 rpm a safe range and a good speed and great cruising speed. So when I removed his prop and seen it was a 21 pitch from previous smaller boats and dealing with the 115 yamhas I thought the 13x19 prop would fix the issue. Well it helped allot but still very sluggish to get on plane but when it finally does get in plane it maxes out at 5500 rpm and if I trim it up it will go to around 6k rpm. Do you think I suggested the wrong size prop and I should see if the store will let us return the 13x19 and get a 13x17 ?

[@andrewbrownfield7441]

I got the same boat but with a 120 force

[@TC-yx1qt]

What's your fuel consumption?

[@valsiretanu9535]

Hey 👋? Do you sell his boat or what?

[@tintdr]

????