1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 254Get this manual

9-1 LOWER UNIT
REMOVALDISASSEMBLY
Always disconnect the battery cable, before removing lower unitTo separate the clutch rod from the shift rod, loosen the clutch rod lock nut 1, then unscrew the turnbuckle 2
Remove six(6) bolts and separate gearcase from driveshaft housing

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