2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 110Get this manual
SYSTEM ANALYSIS SPECIALIZED TEST PROCEDURES
SPECIALIZED TEST PROCEDURES
Contact with rotating propeller is likely to result in serious injury or deathAssure the engine and prop area is clear of people and objects before starting engine or operating boatDo not allow anyone near propeller, even when the engine is offBlades can be sharp and the propeller can continue to turn even after the engine is offRemove propeller before servicing and when running the outboard on flushing deviceDO NOT run the engine indoors or without adequate ventilation or permit exhaust fumes to accumulate in confined areasEngine exhaust contains carbon monoxide which, if inhaled, can cause serious brain damage or deathThe following tests are performed with the outboard runningObserve the operation of each electrical circuitLook for inconsistencies between similar circuits and variations in cylinder performance
Dynamic Tests can be used in conjunction with: timing light to determine how other cylinders are affected by one cylinder being "dropped"; or voltmeter to check voltage changes on electrical circuits