Suzuki 2002-2005 DF4/DF5/DF6 4-Stroke Outboards Service Manual, Page 194Get this manual
DF456 "K5" ('05) MODEL
THERMOSTAT
The thermostat has been changed in shape
INTAKE MANIFOLD
In accordance with change of the carburetor and thermostat, the intake manifold has been changed in shape46 mm: For U.Smodel 48 mm: For EU and general market model