Suzuki DF25/DF30 Four Stroke Service Manual, Page 196Get this manual
MID UNIT 8-17 ENGINE HOLDER TO OIL PAN Install gasket and oil relief valve to engine holder 3, then tighten valve securelyOil relief valve27 N.m2.7 kg-m, 19.5 lbft
Apply engine oil to O-ring 4, then install O-ring to oil strainer 5Install oil strainer to engine holder 3, then tighten bolts securely
Apply engine oil to O-ring 7Install O-ring and oil pump to engine holder 3, then tighten three bolts securely