Yamaha YFM250RX 2008 Service Manual page 23

Tool No.
Valve guide installer (φ6)
Valve guide installer (6.0 mm)
90890-04065
YM-04065-A
This tool is needed to install the valve guides.
Valve guide reamer (φ6)
Valve guide reamer (6.0 mm)
90890-04066
YM-04066
This tool is needed to rebore the new valve
guides.
Valve lapper
Valve lapping tool
90890-04101
YM-A8998
This tool is needed to remove and install the
valve lifters.
PTT wrench 46
90890-06588
This tool is needed to loosen or tighten the
rear axle nut.
Axle nut wrench (46 mm)
YM-37134
This tool is needed to loosen or tighten the
rear axle nut.
Ignition checker
Opama pet-4000 spark checker
90890-06754
YM-34487
This instrument is necessary for checking the
ignition system components.
Digital tachometer
90890-06760
YU-39951-B
This tool is needed for observing engine rpm.
Yamaha bond No. 1215
(Three Bond No. 1215
90890-85505
This bond is used on crankcase mating sur-
faces, etc.
Tool name/Function
®
)
1-8
SPECIAL TOOLS
Illustration
GEN
INFO