HYOSUNG Aquila Owner's Manual page 43

Noise Control System (muffler assembly)
TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED
Owners are warned that the law may prohibit :
(a) The removal or rendering inoperative by any person other than for purpose of mainte-
nance, repair or replacement, of any device or element of design incorporated into any
new vehicle for the purpose of noise control prior to its any sale of delivery to the ulti-
mate purchaser or while it is in use ; and
(b) The use of the vehicle after such device or element of design has been removed or ren-
dered inoperative by any person.
MAINTENANCE :
The exhaust system of this motorcycle requires no periodic maintenance. The engine
should be adjusted to the manufacturer s specifications and the spark plug should be kept
in good condition. Running the engine with incorrectly operating spark plug or misadjusted
carburetor may cause permanent damage to the catalyst and to the noise control system.
WARNING