GEN
INFO
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SPECIAL TOOLS
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 CDN, use part number starting with “YM-”, “YU-” or “YS-”.
●
For others, use part number starting with “90890-”.
Part number
Tool name/How to use
Illustration
YU-1083-A
90890-01084
90890-01085
Small 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-1135-A, 90890-01135
Crankcase separating tool
These tools are used to split the crankcase as well as
remove the crankshaft from either case.
YU-1135-A
90890-01135
YU-3097, 90890-01252
YU-1256
Dial gauge & stand set
Stand
These tools are used to check each part for runout or
bend.
YU-3097
YU-1256
90890-01252
YU-90050, 90890-01274
YU-90050, 90890-01275
YU-90063, 90890-01278
YU-91044, 90890-04081
Crankcase installing tool
Crankshaft installer pot
Crankshaft installer bolt
Adaptor
Spacer (crankshaft installer)
These tools are used to install the crankshaft.
YU-90050
YU-91044
YU-90063
90890-01274
90890-01275
90890-01278
90890-04081
YM-01326, 90890-01326
YM-1300, 90890-01294
T-handle
Damper rod holder
These tools are used for holding the damper rod
holder when removing or installing the damper rod
holder.
YM-01326
YM-1300
90890-01326
90890-01294
YU-1304, 90890-01304
Piston pin puller set
This tool is used to remove the piston pin.
YU-1304
90890-01304
YM-8035, 90890-01311
Tappet adjusting tool
This tool is necessary for adjusting valve clearance.
YM-8035
90890-01311
