First let me start of with the numbers. I was finally able to run WOT yesterday because the water was flat enough. I have a 17' Glasspar remodeled for ocean fishing. It has a v-hull. The main motor is a 2000 Yamaha 100hp four stroke. The prop is a OEM Alluminum 13 1/2 X 15P.<br />WOT she went...
Here's the problem. Two trips ago, I started my motor as usual and it was running really rough with slight vibration at idle. As I throttled up the whole boat would start to shake. I played around with it for a while at different throttle settings. The most rpm I could get out of it was 2300...
