2-70 PERIODIC MAINTENANCE
Periodic Maintenance Procedures
Clutch Master Cylinder Rubber Parts Replacement
Remove the clutch master cylinder (see Clutch Master
Cylinder Removal in the Clutch chapter).
Remove the reservoir cap [A], plate [B] and diaphragm
[C], and pour the clutch fluid into a container.
Unscrew the locknut [D] and pivot bolt [E], and remove
the clutch lever.
Pull the dust cover [F] out of place, and remove the circlip
Special Tool - Inside Circlip Pliers: 57001-143
Pull out the piston assy [H] (primary cup [I], piston [J],
secondary cup [K], and return spring [L]).
Do not remove the secondary cup from the piston
since removal will damage it.
Check the parts of the clutch master cylinder (see Clutch
Master Cylinder Inspection in the Clutch chapter).
If any part shows signs of damage, replace it.
Before assembly, clean all parts including the master
cylinder with clutch fluid or alcohol.
Use only disc brake fluid, isopropyl alcohol or ethyl
alcohol, for cleaning parts. Do not use any other
fluid for cleaning these parts.
Gasoline, motor oil or any other petroleum distil-
late will cause deterioration of the rubber parts. Oil
spilled on any part will be difficult to wash off com-
pletely, and will eventually deteriorate the rubber
used in the cylinder.
Apply clutch fluid to the parts removed and to the inner
wall of the cylinder.
Take care not to scratch the piston or the inner wall of the
Install the push rod with the dust seal fitted into the
The push rod round end must be faced inwards.
Torque - Clutch Lever Pivot Bolt: 1.0 N·m (0.10 kgf·m, 8.9
Clutch Lever Pivot Bolt Locknut: 5.9 N·m (0.60
kgf·m, 52 in·lb)
Install the clutch master cylinder (see Clutch Master Cylin-
der Installation in the Clutch chapter).