2003+ Suzuki DF9.9/DF15 four stroke outboard motors service manual, Page 35Get this manual
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PERIODIC MAINTENANCE
8 Tighten the valve adjusting lock nut while holding the valve adjusting screw! Valve adjusting lock nut: 10 Nm (1.0 kgf-m, 7.0 lb-ft)
9 Recheck the valv