SPECIAL TOOLS
1-14
EAM20121
SPECIAL TOOLS
The following special tools are required for accurate and complete adjustment and assembly. Using the
correct special tool will help prevent damage caused by the use of improper tools or improvised tech-
niques. The shape and tool number used for the special tool differ by country, so two types are provid-
ed. Refer to the list provided to avoid errors when placing an order.
• For U.S.A. and Canada, use tool number starting with “YM-”, “YU-”, or “ACC-”.
• For others, use tool number starting with “90890-”.
Tool name/Tool No. Illustration
Reference
pages
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachometer
YU-A1927
1-13, 5-46, 8-58,
8-59, 8-59, 8-59,
8-62, 8-64, 8-65,
8-66, 8-66, 8-66,
8-67, 8-67, 8-68,
8-69, 8-69, 8-70,
8-70, 8-71, 8-71
Thickness gauge
90890-03268
Feeler gauge set
YU-26900-9
3-7, 4-11, 5-51
Valve lapper (ø14)
90890-04101
Valve lapper (ø14)
YM-A8998
3-8, 5-27
Yamaha diagnostic tool USB (US)
90890-03269
3-12, 7-8, 8-31
Yamaha diagnostic tool (A/I)
90890-03264
3-12, 7-8, 8-31
FI diagnostic tool sub–lead
90890-03212
FI diagnostic tool sub–lead
YU-03212
3-12, 7-8, 8-31
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