Yamaha WR250F Manuel D'atelier page 38

EC140001
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-" or "YU-".
For others, use part number starting with "90890-".
Part number
YU-1135-A, 90890-01135 Crankcase separating tool
These tool is used to remove the crankshaft from
either case.
YU-1235, 90890-01235 Rotor holding tool
This tool is used when loosening or tightening the fly-
wheel magneto securing nut.
YU-3097, 90890-01252 Dial gauge and stand
YU-1256 Stand
These tools are used to check each part for runout or
bent.
Crankshaft installing tool
Crankshaft installing pot
YU-90050, 90890-01274
YU-90050, 90890-01275 Crankshaft installing bolt
YU-91044, 90890-04081 Spacer (crankshaft installer)
YM-1277, 90890-01277 Adapter (M10)
These tools are used to install the crankshaft.
YU-1304, 90890-01304 Piston pin puller set
This tool is used to remove the piston pin.
YU-24460-01, 90890-01325 Radiator cap tester
YU-33984, 90890-01352 Radiator cap tester adapter
These tools are used for checking the cooling sys-
tem.
YU-33270-B, 90890-01362 Flywheel puller
This tool is used to remove the flywheel magneto.
All manuals and user guides at all-guides.com
Tool name/How to use
1 - 7
SPECIAL TOOLS
Illustration
YU-1135-A
YU-1235
YU-3097
YU-1256
YU-90050
YM-1277
YU-91044
YU-1304
YU-24460-01
YU-33984
YM-33270-B
GEN
INFO
90890-01135
90890-01235
90890-01252
90890-01274
90890-01275
90890-01277
90890-04081
90890-01304
90890-01325
90890-01352
90890-01362