2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005990, Page 146Get this manual

2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005990, Page 146

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CYLINDER Measue
valve seat contact width: Service limit: 0.035 to 0.043 in(0.9 to 1.1

If measuement exceeds service limit, repair valve seatRefer to Valve Seat Servicing 149004541

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