1990 Johnson Evinrude "ES" 40 thru 55 Service Repair Manual, P/N 507872, Page 38Get this manual

1990 Johnson Evinrude "ES" 40 thru 55 Service Repair Manual, P/N 507872, Page 38

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AnodesTesting and Replace ment Erosion or disintegration in salt or brackish water indicates the anodes are performing their functionThe anodes should be inspected andor replaced at intervals or corro