1983 Yamaha 30EN Outboards Service Manual, Page 11Get this manual
10 Lower unit shimming gauge, YB-34232
For electrical components 1Yamaha pocket tester PIN YU -03112
YB-34232
11Dial gauge stand PIN 90890-06225 Backlash indicator rod PIN YB-6173
Ignition coil tester PINYU-33261