1. Engine Serial Number 1E089515
2. Year/Make/Model - 2022, Mercury, 450R - 14500013A
3. Prop you are Running - 28 Bravo1, 48-831916
4. Current Maximum RPM - 6,440
5. Idle and WOT Water Pressure Readings - 6 / 25 psi
6. Smartcraft or Analog Instruments? Smartcraft
The motor feels sluggish in the middle rpm range most of the time but not always.
Sometimes when trying to plane out the engine will just surge from 3,000 to 2,500 RPMs. It will continue to do this until you let off the throttle and get back on it at which time it planes like normal - about 5 seconds. It has never done this off the trailer, always later in the day when changing locations.
There are no DTCs
I would greatly appreciate any advice or thoughts.