Suzuki 2002-2005 DF4/DF5/DF6 4-Stroke Outboards Service Manual, Page 128Get this manual
LOWER UNIT 8-7
PROPELLER SHAFT COMPONENTS
Inspect the push rod and the push rod pinIf excessive wear or other damage is found, replace Inspect the clutch dog shifterIf excessive wear, crack, chip or other damage is found, replace Inspect the dog pinIf excessive wear, bend or other damage is found, replace Inspect the propeller shaftIf excessive wear, twist or other damage is found, replace Measure the return spring free lengthClutch return spring free length (L) Standard46 mm (18.1 in) Service limit43 mm (16.9 in) If the measurement exceeds the service limit, replace