1990 Johnson Evinrude "ES" 40 thru 55 Service Repair Manual, P/N 507872, Page 43Get this manual

1990 Johnson Evinrude "ES" 40 thru 55 Service Repair Manual, P/N 507872, Page 43

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Maximum Spark Advance

1 The boat and engine must be in the water under normal operating conditions with the correct propeller installedThe boat's movement must be unrestrainedThe boat mus

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