1987 Johnson Evinrude "CD" Colt/Junior thru 55 Commercial service repair manual, P/N 507546, Page 79Get this manual

1987 Johnson Evinrude "CD" Colt/Junior thru 55 Commercial service repair manual, P/N 507546, Page 79

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