Exhaust Silencer - APRILIA MOJITO 150 - 2006 Manual

APRum_MOJ50_150#02_####.book Page 52 Tuesday, June 6, 2006 5:29 PM
D u e t o c a t a l y t i c r e a c t i o n , t h e h i g h
temperature reached by the exhaust gases
makes for the burning of the oil particles,
thus keeping the silencer clean and
eliminating exhaust fumes.
To have the catalytic converter function
correctly and for long time and to reduce
possible problems regarding the soiling of
the thermal unit and of the exhaust, it is
necessary to avoid covering long distances
with the engine running at constantly low
rpm.
It is sufficient to alternate these periods
with periods in which the engine runs at
relatively high rpm, even if only for a few
seconds, but rather frequently.
What has been stated above assumes
particular importance for the cold starting
of the engine: in this case, in order to reach
a rpm regime sufficient to enable the
≈priming∆ of the catalytic reaction, just
make sure that the temperature of the
thermal unit has reached at least 122 °F
(50 °C); which generally occurs a few
seconds after starting the engine.
CAUTION
Do not use leaded petrol, since it
causes the destruction of the catalytic
converter.
52
use and maintenance Mojito 50 - 150
USA

EXHAUST SILENCER

WARNING
Tampering with the noise control
system is prohibited.
Owners are warned that the law may
prohibit:
√ the removal or rendering inoperative by
any person, other than for purposes of
maintenance, repair or replacement, of
a n y d e v i c e o r e l e m e n t o f d e s i g n
incorporated into any new vehicle √ for
the purpose of noise control √ prior to its
sale or delivery to the ultimate purchaser
or while it is in use; and
√ the use of the vehicle after such device
or element of design has been removed
or rendered inoperative by any person.
Check the exhaust silencer and the
silencer pipes, making sure that there are
neither signs of rust nor holes, and that the
exhaust system works effectively.
If the noise produced by the exhaust
system increases, immediately contact
your aprilia Official Dealer.