APRILIA SCARABEO 100 - 1999 Manual page 62

N
Start the engine.
The minimum speed of the engine (idling)
must be about 1800 ± 100 rpm; in this case
the engine does not make the rear wheel
rotate.
/
The minimum speed of the engine (idling)
must be about 1400 ± 100 rpm; in this case
the engine does not make the rear wheel
rotate.
If necessary:
N
Act on the adjusting screw (1) positioned
on the carburettor.
By SCREWING IT (clockwise), you in-
crease the engine rpm.
By UNSCREWING IT (anticlockwise), you
decrease the engine rpm.
62
use and maintenance Scarabeo 50 - Scarabeo 100
N
Twist the throttle grip, accelerating and
decelerating a few times to make sure
that it functions correctly and to check if
the idling speed is constant.
NOTE
Do not act on the air adjusting
screw, to avoid variations of the carbura-
tion setting.
CAUTION
If necessary, contact your
Dealer.
Carefully read p. 43 (MAINTENANCE).
The ideal slack of the accelerator control
should be about 2-3 mm.
To adjust the slack, proceed as follows:
N
Position the vehicle on the centre stand
on firm and level ground.
N
Remove the protection element (2).
N
Loosen the nut (3) (by turning it clock-
wise).
N
Act on the adjuster (4), positioned at the
beginning of the accelerator control ca-
ble.
After the adjustment:
Official
N
Tighten the nut (3) (by turning it anti-
clockwise), thus locking the adjuster (4)
and put back the protection element (2).
WARNING
After the adjustment, make sure that the
rotation of the handlebar does not mod-
ify the engine idling rpm and that the
throttle grip returns smoothly and auto-
matically to its original position after
being released.