Yamaha YP250A 1999 Supplementary Service Manual page 84

ANTI-LOCK BRAKE SYSTEM (ABS)
Installing the hydraulic unit
Proceed in the reverse order of disassembling
paying attention to the following items.
1. Install:
S Hydraulic unit 1
NOTE:
Since dusts around the hydraulic unit may enter
the brake fluid in a hose while assembling pro-
cess, clean up dusts before assembling the brake
hose.
CAUTION:
Do not remove the rubber plug which has been
secured to the hose setting hole of hydraulic
unit while installing the unit.
2. Remove:
S Rubber plug
3. Install:
S Brake hose 1 (from the front master cylinder)
S Brake hose 2 (to the front brake caliper)
S Brake hose 3 (from the rear master cylinder)
S Brake hose 4 (to the rear brake caliper)
Plate washer (Copper washer)
New
Union bolt
30 Nm (3.0 mSkg)
WARNING
Outlet side of front and rear brake hoses are
partially distinguished by means of rubber
hose. Do not mistake to connect them.
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CHAS