1996 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 102Get this manual
RPM Limiting Ignition Module Some ignition modules have built-in RPM limiting deviceCertain models are equipped with limiting ignition module to guard against possible powerhead failures caused by improper propeller selection (under propping), excessive wear on propeller blades, improper motor installation, propeller ventilation, or unusually light boat loadingBe sure to use the correct ignition module when servicing the models listed below to control the engine's operating RPM range and protect it from possible powerhead damage due to overspeedingRPM Limit
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 unqetected, repeat ignition system failure may occur, or damage to replacement parts could resultTest everything