I am running a 25hp Johnson, with an aluminum 10.5 x 11 prop, pushing a 1648 Crestliner Modified V.
The boat and motor performed well when I first got it. But last summer, I built a casting deck and added a trolling motor with battery. With the added weight, the motor does not perform as well as it did. I have adjusted the angle back 2 holes and experimented with the other holes. I found the current location of 2 holes back from the original was the best.
When I turn the throttle all the way and pick up speed everything sounds ok. When I get on plane and reach maximum speed, the motor starts chugging/whining. If I let of the throttle just a little it stops until I turn it all the way again. I am wondering if this is a prop issue? It seems to not do it as bad or at all when I have more people in the boat with me. Any ideas?
The boat and motor performed well when I first got it. But last summer, I built a casting deck and added a trolling motor with battery. With the added weight, the motor does not perform as well as it did. I have adjusted the angle back 2 holes and experimented with the other holes. I found the current location of 2 holes back from the original was the best.
When I turn the throttle all the way and pick up speed everything sounds ok. When I get on plane and reach maximum speed, the motor starts chugging/whining. If I let of the throttle just a little it stops until I turn it all the way again. I am wondering if this is a prop issue? It seems to not do it as bad or at all when I have more people in the boat with me. Any ideas?