1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 197Get this manual
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POWER UNIT 6-54 (5) Assemble crankcase to cylinder(6) Apply engine oil to crankcase boltsTighten crankcase bolts in three(3) steps following the order indicated belowCrankcase bolt: 1st step mm 10 mm