1999 "EE" 90, 115 FFI, 150, 175 V4, V6 FFI Outboards Service Repair Manual, P/N 787024, Page 143Get this manual

1999 "EE" 90, 115 FFI, 150, 175 V4, V6 FFI Outboards Service Repair Manual, P/N 787024, Page 143

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Perform the following tests if the tachometer does not operate INote The tachometer circuit is driven by the ECUImportant Verify that all engine and boat wiring and connectors are in good condition1 C