jrm012

Took the 2003 Islandia (Mercury 240) out today and ran into some trouble - boat was running a bit funky when we took it out. I had let it warm up at the dock and then motored out into the main body of water and ran it up 1/4 to 1/2 throttle up position. It occasionally got a hitch in its giddy-up (slight tick up or slight tick down). We stopped for a bit and let the kids play in the water for about 20-30 min and then started back towards the marina. I was running at 3/4 to full throttle when I saw some floating debris in the water and slowed to 1/4 throttle to get around it. When I went to throttle back up the boat had lost motoring power. What I mean is that the engine would rev up and we'd start forward but then at over 1/4 throttle the rpm would increase and no more forward power would occur (I could hear the engine reving but nothing was happening down below). Same in reverse. We made it back to the marina at 1/4 impulse power :-) and then trailered the boat. Does anyone know what might be going on here? Thanks.