I have a 2012 200HO on my 24 Grady White. The manual indicates the Full Throttle range at 4500-5800 rpm. The new 200HO for 2014 sets that range at 5250 - 6000 rpm. I am running the 17 pitch Rebel prop and run at 5200 rpm WOT which is the middle of the range for my year. Why the change in WOT rang on the newer engine?
A 15" Rebel may help your performance and the health of your motor, especially if you can raise the motor a couple of holes.
"There is never just one thing wrong with a boat";
-- Travis McGee, main character in a book series by John D. McDonald
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.