2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 120Get this manual
IGNITION TROUBLESHOOTING
TROUBLESHOOTING
Complete these tasks to obtain fast, accurate test results when troubleshooting the capacitor discharge ignition system Visual InspectionCheck wiring for broken, pinched, or loose leadsConnectors must be securely fastened and free from moisture or water accumulation Test Equipment ConditionMake sure testers are in working orderMany hours can be wasted by replacing working components needlessly Follow ProcedureTroubleshooting can seem difficult if you vary your technique for each problem Many 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 tested Test the Complete SystemThere may be occasions when more than one component is defectiveIf this condition is undetected, repeated ignition system failure may occur, or damage to replacement parts could resultTest everything
outside the spark plug holeThis indicates the number piston is near top dead center