2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Repair Manual P/N 5005714, Page 171Get this manual

2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Repair Manual P/N 5005714, Page 171

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LOWER UNIT INSPECTION Replacing propeller shaft oil seal
Inspect: Impeller Cut, tear, wear, damageReplace

Water case Crack, distotion, corrosionReplace

Water inlet tube