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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.
• For U.S.A. and Canada, use part number starting with "YM-", "YU-" or "ACC-".
• For others, use part number starting with "90890-".
Tool name/Part number
How to use
Illustration
Crankcase separating tool
YU-1135-A, 90890-01135
These tool is used to remove the
crankshaft from either case.
Flywheel puller
YM-1189, 90890-01189
This tool is used to remove the fly-
wheel magneto.
Rotor holding tool
YU-1235, 90890-01235
This tool is used when loosening or
tightening the flywheel magneto se-
curing nut.
Dial gauge and stand
YU-3097, 90890-01252
Stand
YU-1256
These tools are used to check each
part for runout or bent.
Crankshaft installing tool
Crankshaft installing pot
YU-90050, 90890-01274
Crankshaft installing bolt
YU-90050, 90890-01275
Spacer (crankshaft installer)
YU-91044, 90890-04081
Adapter (M12)
YU-90063, 90890-01278
These tools are used to install the
crankshaft.
Piston pin puller set
YU-1304, 90890-01304
This tool is used to remove the pis-
ton pin.
Summary of Contents for YZ250F(X)
Page 2: ......
Page 57: ...3 13 ENGINE INTAKE EXHAUST ...
Page 108: ...4 41 OIL PUMP 15 Rotor housing 1 Order Part name Q ty Remarks ...
Page 159: ...5 29 STEERING 9 Bearing race 2 Refer to removal section Order Part name Q ty Remarks ...
Page 168: ...5 38 REAR SHOCK ABSORBER 12 Bearing 2 Refer to removal section Order Part name Q ty Remarks ...
Page 243: ...3 13 MOTEUR ADMISSION ECHAPPEMENT ...
Page 298: ...4 44 BALANCIER 5 Replier l onglet de la rondelle frein ...
Page 384: ......
Page 439: ...3 13 MOTOR EINLASS AUSLASS ...
Page 495: ...4 45 ÖLPUMPE 15 Rotorgehäuse 1 Reihenfolge Bauteil Anz Bemerkungen ...
Page 555: ...5 38 FEDERBEIN 12 Lager 2 Siehe den Abschnitt zum Ausbau Reihenfolge Bauteil Anz Bemerkungen ...
Page 578: ......
Page 634: ...3 14 MOTORE ASPIRAZIONE SCARICO ...
Page 688: ...4 43 EQUILIBRATORE 5 Piegare la linguetta della rondella di bloccaggio ...
Page 690: ...4 45 POMPA DELL OLIO 15 Alloggiamento del rotore 1 Ordine Denominazione Quantità Osservazioni ...
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