SPECIAL TOOLS
The proper special tools are necessary for complete and accurate tune-up and assembly. Using the
correct special tool will help prevent damage caused by the use of improper tools or improvised
techniques. The shape and part number used for the special tool differ by country, so two types are
provided. Refer to the list provided to avoid errors when placing an order.
NOTE:
For U.S.A. and Canada, use part number starting with "YM-", "YU-" or "YS-".
For others, use part number starting with "90890-".
Part number
YU-1083-A
90890-01084
90890-01085
YU-1268, 90890-01268
YU-3112-C, 90890-03112
YU-8036-B
90890-03113
YM-4019, 90890-04019
YM-1300
90890-01294
YU-1304, 90890-01304
Tool name/How to use
Slide hammer set
Weight
Slide hammer bolt
These tools are used when removing or installing the
rocker arm shafts.
Ring nut wrench
This tool is used when loosen the steering ring nut to
specification.
Pocket tester
Use this tool to inspect the coil resistance, output
voltage and amperage.
Inductive tachometer
Engine tachometer
This tool is needed for observing engine rpm.
Valve spring compressor
This tool is needed to remove and install the valve
assemblies.
Damper rod holder set
Damper rod holder
Use this tool to remove and install the damper rod.
Piston pin puller set
This tool is used to remove the piston pin.
SPECIAL TOOLS
YU-1083-A
YU-1268
YU-3112-C
YU-8036-B
YM-4019
YM-1300
YU-1304
1 - 6
GEN
INFO
Illustration
90890-01084
90890-01085
90890-01268
90890-03112
90890-03113
90890-04019
90890-01294
90890-01304