2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Repair Manual P/N 5005638, Page 194Get this manual

2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Repair Manual P/N 5005638, Page 194

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POWERHEAD CLEANING
avoid piston or cylinder bIock damage, restore the chamfer to all port edges using ball hone or other suitabIe tool
Carefully remove carbon accumulation from the tops an