Honda BF50 (5HP), BF5A Outboard Motors Shop Manual 2014, Page 49Get this manual
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BF50SF5A
22-28 Nm (220-280 kgcm16-20 ft-Ib)
15-20 N'm (150-200 kg-cm, 11-15 ft-Ib)
OIL PRESSURE SWITCH INSPECTION: P.36 REASSEMBL Y: Apply sealing agent to the threads