I think the motor is a 1996 DT150 2 stroke. It feels like it's popping out of gear at 1800 rpm then quickly climbs to 2800 rpm or higher if you let it. Quickly reduce gas motor drops below 1800 rpm and prop continues to push the boat. Carb butterfly's only open about 25%. Is this a limp home feature? First time in the water with this boat. Thanks..