My problem is a 115hp Yamaha 4 stroke that vibrates at idle speed on a Tidewater 180cc. Thanks for all the feedback.
I now believe my problem is a boat problem. The boat has a 20" transom designed for a 90hp motor but with a 115hp maxiumhp recomendation. I think that on a 25" transom the...
I took delivery of a 2011 Yamaha 115 HP four stroke on a tidewater 180 CC with a 20 in. transom in March of 2011. I have a complaint. The problem is that the motor vibratation at idle speed, is so bad until everything inside the boat shakes. Above 1100 RPM its ok. Both the dealer and Yamaha...
