1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 40Get this manual

1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 40

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AnodesTesting and Replacement Erosion disintegration in salt brackish water indicates the anodes performing their functionThe anodes should inspected andor replaced at intervals, corrosion of the engi