1997 Johnson Evinrude "EU" 9.9 thru 30 2-Cylinder Service Manual, P/N 507263, Page 103Get this manual
About This Section The information in this section of the Service Manual has been organized into format that will allow the technician to make maximum use of his troubleshooting timeTo be most effective, the technician should read and understand these statements before proceeding1To save time, routine service information has been covered in the first pages of this sectionIt includes: brief review of the principles of operation for OMC's CD II ignition system, Page 3-12 listing of available troubleshooting test equipment, Page 3-15 brief review of spark plug information, Page 3-7 Sel'vicing flywheels, flywheel and crankshaft tapers, Page 3-8 Flywheel Nut Torque Chart, Page 3-9 review of all testing procedures for ignition coils, Page 3-10 An Ignition Coil Specification chart, Page 3-102If you are working on an engine where the ignition problem makes the engine very hard to start or impossible to start, begin your testing with Ignition Output Tests, Page 3-243If you are working on an engine where the ignition problem creates an intermittent high speed miss or inconsistent running qualities above cranking RPM, refer to Indexing Flywheel, Erratic Ignition, Page 3-22