Part number
YM-4112, 90890-04112
Valve guide installer
YM-4117, 90890-04117
Intake 4.0 mm (0.16 in)
Exhaust 4.5 mm (0.18 in)
This tool is needed to install the valve guide.
YM-4113, 90890-04113
Valve guide reamer
YM-4118, 90890-04118
Intake 4.0 mm (0.16 in)
Exhaust 4.5 mm (0.18 in)
This tool is needed to rebore the new valve guide.
YM-34487
Dynamic spark tester
90890-06754
Ignition checker
This instrument is necessary for checking the ignition
system components.
ACC-QUICK-GS-KT
Quick gasket
90890-85505
YAMAHA Bond No. 1215
This sealant (Bond) is used for crankcase mating
surface, etc.
All manuals and user guides at all-guides.com
Tool name/How to use
®
1 - 9
SPECIAL TOOLS
Illustration
YM-4112
YM-4117
YM-4113
YM-4118
YM-34487
ACC-QUICK-GS-KT
GEN
INFO
90890-04112
90890-04117
90890-04113
90890-04118
90890-06754
90890-85505