1-7
SPECIAL TOOLS
GEN
INFO
Tool No. Tool name/How to use Illustration
90890-04057
Bearing retainer wrench
This tool is needed when removing or
installing the middle driven shaft
bearing.
Driver
90890-04058
Installer/
remover
90890-04074
Middle driven shaft bearing driver
Plain bearing installer/remover
These tools are needed when removing
or installing the main journal bearing.
90890-04062
Universal joint holder
This tool is needed when removing or
installing the driven pinion gear nut.
90890-04080
Middle gear backlash tool
This tool is needed for the gear backlash
adjustment.
90890-04086
Clutch holding tool
This tool is needed to hold the clutch
when removing or installing the clutch
boss nut.
90890-04090
Damper spring compressor
This tool is needed when removing or
installing the damper spring.
90890-06754
Ignition checker
This instrument is necessary for checking
the ignition system components.
90890-85505
Yamaha bond No.1215
This sealant (bond) is used on crankcase
mating surfaces, etc.