2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Manual, Page 112Get this manual
POWER UNIT SPECIAL TOOLS 9101112
Hexagon wrench set 13
Vernier calipers 14
Micrometer (2550 mm) 15
Micrometer (5075 mm) 16
Micrometer (025 mm) 17
Cylinder gauge set (4080 mm) 18
Dial calipers (1034 mm)
Dial gauge 20
(0.0510.125 mm) Magnetic stand 21Thickness gauge 22Steel "V" block set 23(0.0250.076 in) Plastigauge 24