Service Manual — page 444 of 715
Brakes › Brake Line Bleeding
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12-22 BRAKES
Brake Fluid
Brake Fluid Level Inspection
• Refer to the Brake Fluid Level Inspection in the Periodic
Maintenance chapter.
Brake Fluid Change
• Refer to the Brake Fluid Change in the Periodic Mainte-
nance chapter.
Brake Line Bleeding
The brake fluid has a very low compression coefficient so
that almost all the movement of the brake lever or pedal
is transmitted directly to the caliper for braking action. Air,
however, is easily compressed. When air enters the brake
lines, brake lever or pedal movement will be partially used
in compressing the air. This will make the lever or pedal feel
spongy, and there will be a loss in braking power.
WARNING
Air in the brake lines diminish braking performance
and can cause an accident resulting in injury or
death. If the brake lever or pedal has a soft or
"spongy" feeling mushy when it is applied, there
might be air in the brake lines or the brake may be
defective. Do not operate the vehicle and service
the brake system immediately.
NOTE
○The procedure to bleed the front brake line is as follows.
Bleeding the rear brake line is the same as for the front
brake.
• Remove:
Front Brake Fluid Reservoir Cap Screws [A]
Front Brake Fluid Reservoir Cap [B]
Diaphragm Plate
Diaphragm
•Fill the reservoir with fresh brake fluid to the upper level
line in the reservoir.
•Slowly pump the brake lever several times until no air
bubbles can be seen rising up through the fluid from the
holes at the bottom of the reservoir.
○Bleed the air completely from the master cylinder by this
operation.
• Remove
caliper.
the rubber cap from the bleed valve [A] on the
• Attach a clear plastic hose [B] to the bleed valve, and run
the other end of the hose into a container.