1995 Johnson/Evinrude Outboards 50 thru 70 3-cylinder Service Manual, Page 64Get this manual
Testing Purpose
The following procedure is designed to help you isolate defective component in the boat or engine fuel system The problem might cause loss of engine performance or, if left unrepaired, might cause serious powerhead damageAfter you have isolated the component, refer to Servicing, this Section, for specific repair proceduresTesting Procedure
11 To avoid accidental starting of engine while changing propellers, twist and remove all spark plug leads
Notel Some checks require that the engine be run at full throttle under loadInstall the correct test propeller and run the engine in suitab le test tank1Start engine and allow it to reach normal operating temperature
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