1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Manual, Page 112Get this manual
RPM Limiting Power Pack Some power packs have built-in RPM limiting deviceCertain models are equipped with limiting power pack 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 loadingBe sure to use the correct power pack when servicing the models listed below to control the engine's operating RPM range and protect it from possible powerhead damage due to overspeedingModel
20-30 25RW
RPM Limit
6100 5700
General InformationCD II Ignition
Troubleshooting the Ignition System
The magneto powered capacitor discharge ignition system is easy to troubleshootRemember these tips to obtain fast, accurate test resu Its: 1Visual InspectionCheck wiring for broken, pinched, or loose leadsConnectors should be securely fastened and free from moisture or water accumulation2Test Equipment ConditionBe sure testers are in working orderMany hours can be wasted by replacing working components needlessly3Follow ProcedureTroubleshooting can seem difficult if you vary your technique for each problemMany times items in the system are overlooked because you "thought" you tested themBy following the same procedure each time you troubleshoot, all items in the ignition system will be tested4Test the Complete SystemThere may be occasions when more than one component is defectiveIf this condition is undetected, repeat ignition system failure may occur, or damage to replacement parts could resultTest everything