Honda CB HORNET 160R 2015 Shop Manual page 166

ALTERNATOR
Inspect the brush spring for excessive wear, fatigue or
damage, replace if necessary.
Inspects the commutator bars of the armature for
Do not use
discolouration.
emery or sand
paper on the
commutator
Check for continuity between pair of commutator bars.
There should be continuity.
Check for continuity between each commutator bar and
the armature shaft.
There should be no continuity.
10-12
BRUSH SPRING
COMMUTATOR BARS
ARMATURE