2006 Johnson SD 30 HP 4 Stroke Outboards Service Repair Manual, PN 5006592, Page 145Get this manual

2006 Johnson SD 30 HP 4 Stroke Outboards Service Repair Manual, PN 5006592, Page 145

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POWERHEAD CYLINDER HEAD Ream the valve guide hole with 10.5 mm reamer to true the hole and remove any burrsReam the valve guide bore with 5.5 mm reamerClean and oil the valve guide bore after reaming<