Operation Manual

SPECIAL TOOLS
1-6
GEN
INFO
EC140002
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 “ACC-”.
• For others, use part number starting with “90890-”.
Part number Tool name / How to use Illustration
YM-1189, 90890-01189 Flywheel puller YM-1189 90890-01189
This tool is used to remove the flywheel magneto.
YU-1235, 90890-01235 Rotor holding tool YU-1235 90890-01235
This tool is used when loosening or tightening the
flywheel magneto securing nut.
YU-3097, 90890-01252 Dial gauge and stand YU-3097 90890-01252
YU-1256 Spark plug hole dial stand YU-1256
YU-1037 Offset dial stand YU-1037
These tools are used to set the ignition timing.
YU-1304, 90890-01304 Piston pin puller YU-1304 90890-01304
This tool is used to remove the piston pin.
YM-1312-A, 90890-01312 Fuel level gauge YM-1312-A 90890-01312
YM-1470, 90890-01470 Fuel level gauge adapter YM-1470 90890-01470
This gauge is used to measure the fuel level in the
float chamber.
YU-24460-01, 90890-01325 Radiator cap tester YU-24460-01 90890-01325
YU-33984, 90890-01352 Adapter YU-33984 90890-01352
These tools are used for checking the cooling system.
YU-33975, 90890-01403 Ring nut wrench YU-33975 90890-01403
This tool is used when tighten the steering ring nut
to specification.