User Guide

3. INSPECTION/ADJUSTMENT
3-10
YUP 25 0
Remove the front cover.
Remove the radiator cap.
Remove the drain bolt to drain the coolant
and tilt the scooter to the right and the
coolant will drain more easily.
Drain the coolant in the reserve tank.
Reinstall the drain bolt.
Fill the radiator coolant.
Start the engine and check if there are no
bubbles in the coolant and the coolant level is
stable. Reinstall the radiator cap.
If there are bubbles in the coolant, bleed air
from the system.
Fill the reserve tank with the recommended
coolant up to the upper line.
BRAKE SYSTEM
BRAKE FLUID
Turn the steering handlebar upright and check
if the front/rear brake fluid level is at the
upper limit. If the brake fluid is insufficient,
fill to the upper limit.
Specified Brake Fluid: DOT-4
BRAKE DISK/BRAKE PAD
Check the brake disk surface for scratches,
unevenness or abnormal wear.
Check if the brake disk rubout is within the
specified service limit.
Check if the brake pad wear exceeds the wear
indicator line.
Wear Indicator Line
Drain Bolt
Brake Disk
Radiator Cap
• The coolant freezing point should be
5℃ lower than the temperature of
the riding area.
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Brake Fluid Level
• Keep grease or oil off the brake disk to
avoid brake failure.
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• The brake fluid level will decrease if the
brake pads are worn.
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