I get that. I have owned a few. My curiosity is to why trimming the prop up to the surface the engine does not rev past 5300. Even as mph is decreasing. Spec for the boat props it with 23” and 24”
give us all the info about your engine, prop details, types of gauges, boat make and model, top speed and rpm.
-- Travis McGee, main character in a book series by John D. McDonald
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.