1999 "EE" Evinrude 70HP 4-Stroke Service Repair Manual, P/N 787023, Page 185Get this manual

1999 "EE" Evinrude 70HP 4-Stroke Service Repair Manual, P/N 787023, Page 185

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4 As you interpret your test results, there are three basic possibilities:

3 Normal current draw, slow operating speedCheck for :
Impact valves damaged Check valve or shuttle valve