I'm hoping someone can offer some suggestions. I bought a 2007 Yamaha VX110 Deluxe last year and have about 30 hours on it. Ran great last summer with tp speed of 55 mph. I retrieved it yesterday from the marina where I had it winterized and stored, and top speed was only 35 mph. I had an oil change performed over the winter. Gas tank is about 3/4 full from last season. Engine sounds smooth, but acceleration and top end speed aren't there. Any suggestions would be appreciated.