Removing The Hydraulic Unit Assembly; Checking The Hydraulic Unit Assembly - Yamaha FJR1300AS(X) Service Manual

ET3P6D003
REMOVING THE HYDRAULIC UNIT
ASSEMBLY
ECA3P6D018
CAUTION:
Unless necessary, avoid removing and in-
stalling the brake pipes of the hydraulic unit
assembly.
EWA13930
WARNING
Refill with the same type of brake fluid that is
already in the system. Mixing fluids may re-
sult in a harmful chemical reaction, leading
to poor braking performance.
ECA3P6D010
CAUTION:
• Handle the ABS components with care,
since they have been accurately adjusted.
Keep them away from dirt and do not sub-
ject them to shocks.
• Do not turn the main switch to "ON" when

removing the hydraulic unit assembly.

• Do not clean with compressed air.
• Do not reuse the brake fluid.
• Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
• Do not allow any brake fluid to contact the
couplers. Brake fluid may damage the cou-
plers and cause bad contacts.
• If the union bolts for the hydraulic unit as-
sembly have been removed, be sure to
tighten them to the specified torque and
bleed the brake system.
1. Remove:
• Brake pipes
• Brake hoses
• Metering valve
• Proportioning valve
• Brake hose holder
NOTE:
Do not operate the brake lever and brake pedal
while removing the brake hoses and brake
pipes.
ECA3P6D011
CAUTION:
When removing the brake hoses and brake
pipes, cover the area around the hydraulic
unit assembly to catch any spilt brake fluid.
Do not allow the brake fluid to contact other
parts.
ABS (ANTI-LOCK BRAKE SYSTEM)
2. Disconnect:
• ABS ECU coupler "1"
NOTE:
Pull the coupler ejection slider up to disconnect
the ABS ECU coupler.
3. Remove:
• Hydraulic unit assembly "1"
NOTE:
• To avoid brake fluid leakage and to prevent for-
eign materials from entering the hydraulic unit
assembly, insert a rubber plug "a" or a bolt
(M10 × 1.0) into each flare nut hole.
• When using a bolt, do not tighten the bolt until
the bolt head touches the hydraulic unit. Other-
wise, the brake pipe seating surface could be
deformed.
a
1
ET3P6D004
CHECKING THE HYDRAULIC UNIT
ASSEMBLY
1. Check:
• Hydraulic unit assembly
Cracks/damage → Replace the hydraulic unit
assembly and the brake pipes that are con-
nected to the assembly as a set.
4-62
1