Honda BF9.9A-BF15A Outboard Motors Shop Manual., Page 56Get this manual
HONDA ARMATURE
Check the armature with an armature tester, if it is availableContinuity Check Segments Check for continuity between the segmentsIf an open circuit exists between any two segments, replace the armature
Short Circuit TestCore-to-Commutator Check for continuity between the commutator and armature coil coreIf continuity exists, replace the armature
Short Circuit TestShaft-to-Commutator Check for continuity between the commutator and armature shaftI continuity exists, replace the armature