1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 121Get this manual

1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 121

RPM Limiting Power Packs Power packs designated "CDL" have built-in RPM limiting deviceCertain models are equipped with CDL power packs to guard against possible powerhead failures caused by improper propeller selection (underpropping), excessive wear on propeller blades, improper motor installation, propeller ventilation, or unusually light boat loadingThe RPM limit on these power packs is 6700Be sure to use the correct power pack when servicing these engines to control RPM range and help prevent powerhead damage