1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 31Get this manual

1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 31

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