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SPECIAL TOOLS
YM-4117, 90890-04117
YM-4098, 90890-04098
Valve guide installer
Intake
Exhaust
This tool is needed to install the valve guide.
YM-4117
YM-4098
90890-04117
90890-04098
YM-4118, 90890-04118
YM-4099, 90890-04099
Valve guide reamer
Intake 4.5 mm (0.18 in)
Exhaust 5.0 mm (0.20 in)
This tool is needed to rebore the new valve guide.
YM-4118
YM-4099
90890-04118
90890-04099
YM-34487
90890-06754
Dynamic spark tester
Ignition checker
This instrument is necessary for checking the ignition
system components.
YM-34487 90890-06754
ACC-QUICK-GS-KT
90890-85505
Quick gasket
YAMAHA Bond No. 1215
This sealant (Bond) is used for crankcase mating sur-
face, etc.
ACC-QUICK-GS-KT 90890-85505
Part number Tool name/How to use Illustration