Yamaha LIT-11626-16-27 User Manual

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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.

●

For U.S.A. and Canada, use part number starting with “YM-”, “YU-”, “YS-” or “ACC-”.

●

For others, use part number starting with “90890-”.

YU-1083-A 

90890-01084

90890-01085

Slide hammer set

Weight

Slide hammer bolt

These tools are used when removing or installing the 

rocker arm shafts.

YU-1083-A

90890-01084
90890-01085

YU-1268, 90890-01268

Ring nut wrench

This tool is used when loosen the steering ring nut to 

specification.

YU-1268

90890-01268

YU-3112-C, 90890-03112

Pocket tester

Use this tool to inspect the coil resistance, output 

voltage and amperage.

YU-3112-C

90890-03112

YU-8036-B

90890-03113

Inductive tachometer

Engine tachometer

This tool is needed for observing engine rpm.

YU-8036-B

90890-03113

YM-4019, 90890-04019

Valve spring compressor

This tool is needed to remove and install the valve 

assemblies.

YM-4019

90890-04019

YM-1300 

90890-01294

Damper rod holder set

Damper rod holder

Use this tool to remove and install the damper rod.

YM-1300

90890-01294

YU-1304, 90890-01304

Piston pin puller set

This tool is used to remove the piston pin.

YU-1304

90890-01304