I have a 2003 Fisher 220 with an outboard Mercury 115 EFU 4 stroke. My issue is when I take off I have to have the trim all the way down and once it is WOT I just tap the trim for a 1/2 second and it revs really high and the boat starts surging from the prop coming up to high. When I lean over and look at the engine it is still angled way down and no where near where the trim level should be. Even when I run the trim all the way down WOT across the lake occasionally it does it when crossing small waves. It looks to me like the engine is mounted way to high not allowing the trim to be used.
Any ideas?
Any ideas?