KYMCO Downtown 350i Repair Manual page 524

10..Brake System Downtown 350i
Caution
If any of the brake line fittings, including the ABS hydraulic unit joint nuts, or the bleed valve
are opened at any time, the air must be bled completely from the brake line.
Do not ride the scooter with air in the brake line, or the ABS could malfunction.
□ The ABS indicator light may light if the tire pressure is incorrect, a non-
recommended tire is installed, or the wheel is deformed. If the indicator light lights, remedy
the problem and clear the service code.
□ When the ABS operates, the ABS makes noise and the rider feels the reaction force on
the brake lever and brake pedal. This is a normal condition. It informs the rider that the ABS
is operating normally.
□ Service codes detected once by the ABS hydraulic unit will be memorized in the ABS
hydraulic unit. Therefore, after maintenance work is finished, be sure to erase the service
codes. Do not erase the service codes during troubleshooting. Wait until all the checks and
repair work is finished to prevent duplication of previous service codes and unnecessary
maintenance work.
□ Before delivering the scooter to the customer, be sure to erase any service codes which
might be stored in the ABS hydraulic unit. Test run the scooter at a speed of more than 6
kph (4 mph) to see that the ABS indicator light does not come on. Finally, test run the
scooter at a speed of more than 30 km/h (20 mph) and brake suddenly to see that the
scooter stops without loss of steering control and the ABS operates normally. (The reaction
force generated is felt in the brake lever and
pedal.) This completes the final inspection.
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