Yamaha YFM660RN Service Manual page 131

FRONT AND REAR BRAKES
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Installation steps:
Connect a suitable hose 1 tightly to the
brake caliper bleed screw 2. Put the other
end of this hose into an open container.
Loosen the brake caliper bleed screw and,
using a finger, push the caliper piston into
the brake caliper.
Tighten the brake caliper bleed screw.
Install new brake pads, new pad shim 3 and
a new brake pad spring.
Install the holding bolts and brake caliper.
NOTE:
The arrow mark a on the pad shim must point
in the direction of the disc rotation.
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3.Check:
Brake fluid level
Refer to "CHECKING THE BRAKE FLUID
LEVEL" in CHAPTER 3.
4.Check:
Brake lever operation
Soft or spongy feeling → Bleed the front
brake system.
Refer to "BLEEDING THE HYDRAULIC
BRAKE SYSTEM" in CHAPTER 3.
4 - 16
CHAS
Brake caliper bleed screw:
6 Nm (0.6 m • kg, 4.3 ft • lb)
Brake pad holding bolt:
18 Nm (1.8 m • kg, 13 ft • lb)
Brake caliper mounting bolt:
28 Nm (2.8 m • kg, 20 ft • lb)