Yamaha TT-R125(N) 2000 Owner's Service Manual page 410

FRONT BRAKE (TT-R125LW)
4. Install:
CAUTION:
After installation, while pulling in the lever,
check whether there is any brake fluid leak-
ing where the union bolts are installed
respectively at the brake master cylinder
and brake caliper.
5 - 23
CHAS
Diaphragm
Brake master cylinder cap 1
Screw (brake master cylinder cap) 2
2 Nm (0.2 m · kg, 1.4 ft · lb)