Mercury Mariner Outboards 45 Jet 50 55 60 HP Models Service Manual, Page 61Get this manual
Quality of the image is intentionally reduced!
ARMATURE TEST FOR GROUND 1 Set ohmmeter to (R scale)Place one lead of ohmmeter on armature core (or shaft) and other lead on commutator, as shown2 If meter indicates continuity, armature is grounded a