Yamaha FZ 25 2021 Supplementary Service Manual page 29

GEN
SPECIAL TOOLS
INFO
Tool name / Tool no. Illustration
Piston base
YSST-604
(90890-01067)
This tool is used to support the piston.
Small screw driver
YSST-609
This tool is used to adjust throttle screw/
retract timing chain tensioner.
Torx bit (T-30)
YSST-611
This tool is used to loosen or tighten the 
cam shifter segment screw.
Main switch steering lock
YSST-611 A
This tool is used to loosen or tighten the 
main switch steering lock.
Scraper
YSST-612
This tool is used to scrap the sealant from
crankcase surface.
Cup-B
YSST-620-B
This tool is used to remove the bearings of
rear wheel (LH & RH), front wheel (LH & RH)
and main axle.
Cup- C
YSST-620-C
This tool is used to remove the bearing of
drive axle, balancer shaft and cam shaft
bearing
1-20