2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 226Get this manual
1I-10 Starting System: Check for continuity between the commutator (4) and the armature core (5)shaft (6)Replace the armature if continuity is indicatedSpecial tool (B): 0993099320 (Digital tester) Tester knob indication Continuity) 4 6
Brushes Check the length of each brush (1)If brushes are worn down to the service limit, they must be replacedSpecial tool (A): 0990020101 (Vernier calipers (150 mm)) Brush length Standard: 16.0 mm (0.63 in Service limit: 12.0 mm (0.47 in
I9J011190025-01 I9J011190027-01
Check for continuity between adjacent commutator segmentsReplace armature if no continuity is indicatedTester knob indication Continuity)