Last weekend this thing ran like a champ, this weekend not so much. Typically I can get up to 52-55 on this. This weekend she ran fine for a while, but after jumping some wakes with a buddy of mine on the back, it started to bog down really bad around 6k or between 35-40, mostly when hitting wakes. It almost threw me off because I was going full throttle and it just bogged down for 2 secs, then ran up to 6k then bogged down again. Took it to the dock and noticed the tops of the spark plugs were loose, tightened them down and it helped out a little bit, but was still bogging down just not as bad. I had an extra set, changed them out and it ran fine for about 3 minutes then started doing it again. anyone have any idea?