Yamaha YP250A 1999 Supplementary Service Manual page 89

ON
Main
OFF
switch
ON
2.0 0.5
ABS 3.0
se- se-
seconds
warning light
conds conds
2.0 3.0
seconds seconds
HU operation
0.5
seconds
ANTI-LOCK BRAKE SYSTEM (ABS)
Flashing
0.5 0.5 0.5
se- se- se-
conds conds conds
motor
1.5
OFF
seconds
1.0
seconds
0.5
seconds
5. Turn the main switch to "ON" while operating
the front brake and rear brake levers simulta-
neously.
NOTE:
S When turning the main switch on, it is impossible
to check unless the both front brake and rear
brake levers are operated simultaneously.
S Works should be done by two operators.
6. Check:
S HU operation
When the main switch is turned on, the ABS
warning light goes on for 2 seconds and starts
flashing 3 seconds later.
At the same time it starts flashing, the front
brake lever 1 will be returned instantaneous-
ly. Then, the rear brake lever 2 will be also re-
turned instantaneously.
CAUTION:
S Ensure that the front brake lever is returned,
then the rear brake in order.
S If the order is reversed as the rear brake lever
and front brake lever, recheck the hydraulic
circuit.
S If the lever returns slowly not instantaneous-
ly, the brake hose may be connected with the
inlet and outlet reversed.
S When the HU operation is completely correctly,
delete all malfunction codes.
81
CHAS