1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Manual, P/N 507262, Page 32Get this manual
80 70 60 50 40 30
Percentage of available horsepower (kw) Engine RPM Horsepower (kw) curve
Full-throttle operating range
Rating RPM for horsepower (kw) Engine is overloading at W.O.T Engine is overspeeding at W.O.T