Honda BF135A, BF150A Outboard Motors Shop Manual., Page 397Get this manual

Honda BF135A, BF150A Outboard Motors Shop Manual., Page 397

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BF135ABF150A VALVE STEM-TO-VALVE GUIDE CLEARANCE

SERVICE LIMIT 2.0mm (0.08 in)

If the valve seat width is under the standard, or over the service limit, or if the valve seat