KYMCO 50 Owner's Manual page 27

OPERATION
1. Measure and adjust the tire pressure when the tires are
touching the ground (while no one is seated on the scooter).
NOTE: Measure the pressure before riding, as the heat
generated during operation may cause improper readings.
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2. Inspect the tires for nails, screws and other objects 3 that
may be imbedded into the rubber.
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3. Check the tread depth 4 at the wear indicator points 5. If
the tread is worn smooth at these points, the tire must
be replaced.
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4. Check for damage 6 (blisters or cuts) in the side wall, or
for significant flat spots 7 on the tires' tread. Replace the
tire immediately if any damage of this type is present.
The tires on your scooter must be replaced if they:
Leak air (even at a slow rate)  
 
 Have any damage on the tread or side wall areas  
 
Have been damaged by intrusion of objects, such as a nail
   
  Are worn as evidenced by the wear indicators 
 
Failure to replace a tire in poor condition will cause an
unsafe riding condition. Replace worn or damaged tires
immediately for your, and your passenger's, safety.
Consult your KYMCO dealer for tire repair or replace-
ment service.
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