1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 473Get this manual
DF4050 "K5" ('05) MODEL
Check for continuity between the commutator and the armature coreshaftReplace armature if continuity is indicated09930-99320: Digital tester Tester range: (Continuity)
Armature core
Commutator Shaft