Checking The Hydraulic Unit Assembly; Checking The Brake Pipes; Installing The Hydraulic Unit Assembly - Yamaha YZF-R1 Series Service Manual

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EAS30198
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.
EAS30199

CHECKING THE BRAKE PIPES

The following procedure applies to all of the
brake pipes.
1. Check:
• Brake pipe end (flare nut)
Damage → Replace the hydraulic unit as-
sembly, brake pipes, and related parts as a
set.
EAS30200
INSTALLING THE HYDRAULIC UNIT
ASSEMBLY
1. Install:
• Hydraulic unit assembly
ECA18260
NOTICE
Do not remove the rubber plugs or bolts
(M10 × 1.0) installed in the flare nut holes be-
fore installing the hydraulic unit assembly.
TIP
Do not allow any foreign materials to enter the
hydraulic unit assembly or the brake hoses or
brake pipes when installing the hydraulic unit as-
sembly.
a. Install the hydraulic unit assembly "1" on
the hydraulic unit tray "2".
b. Temporarily tighten the hydraulic unit as-
sembly bolts "3", "4".
c. Tighten the hydraulic unit assembly bolt
"3", and bolt "4" to the specified torque in
this order.
ABS (Anti-lock Brake System)
Hydraulic unit assembly bolt
7 N·m (0.7 kgf·m, 5.2 lb·ft)
LOCTITE®
2
2. Remove:
• Rubber plugs or bolts (M10 × 1.0)
3. Install:
• Hydraulic unit brake pipe
4. Tighten:
• Hydraulic unit brake pipe flare nuts
Hydraulic unit brake pipe flare
nut
16 N·m (1.6 kgf·m, 12 lb·ft)
ECA19820
NOTICE
If the brake pipe flare nut does not turn easi-
ly, replace the hydraulic unit assembly,
brake pipes, and related parts as a set.
TIP
Do not bend the brake pipe when tightening the
brake pipe flare nuts.
5. Install:
• Gaskets
New
• Brake hose union bolts
• Brake hoses "1"
Front brake hose union bolt
32 N·m (3.2 kgf·m, 24 lb·ft)
ECA22800
NOTICE
When installing each brake hose onto the hy-
draulic unit brake pipe joint, make sure that
the brake pipe "a" touches the projection "b"
on the joint.
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