APRILIA 8140172, Service And Repair Manual

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SERVICE AND SETTING UP
2 - 18
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Check after the first 1000 km (625 mi) and succes-
sively every 7500 km (4687 mi) or 8 months.
2.11.1 CHECKING THE OPERATION OF THE
ACCELERATOR CONTROL
a
WARNING
The use of the vehicle with damaged, excessively
bent or twisted accelerator cable may hinder the reg-
ular operation of the accelerator and make you lose
control of the vehicle while riding.
Make sure that the rotation of the handlebar does not
modify the engine idle speed and that the throttle grip re-
turns smoothly and automatically to its original position
after being released.
If necessary, proceed as follows:
NOTE
For the lubrication of the components use the
specific lubricant available on the market.
◆ Check the correct position and the lubrication of the fol-
lowing components:
– sheath;
– throttle grip adjuster (1);
– throttle body adjuster (2);
– throttle body pin (3);
– cable couplings (ends);
– accelerator control.
◆ Check the idle speed, 2.11.2 (IDLING ADJUSTMENT).
◆ Check the accelerator control adjustment, 2.11.3 (AD-
JUSTING THE ACCELERATOR CONTROL).
2.11.2 IDLING ADJUSTMENT
Adjust the idling every time it is irregular.
To carry out this operation, proceed as follows:
◆ Ride for a few miles until reaching the normal running
temperature.
◆ Position the gear lever in neutral (green warning light
“N” on).
◆ Check the engine idling rpm on the revolution counter.
The engine idling speed must be about 1250
±
100
rpm.
If necessary:
◆ Position the vehicle on the stand.
◆ Introduce a small cut-headed screwdriver in the appro-
priate hole (4) provided on the right side cover.
◆ Turn the adjusting knob (5).
– BY SCREWING IT (clockwise), you increase the rpm.
– BY UNSCREWING IT (anticlockwise), you decrease
the rpm.
◆ 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.
For other informations, see section 4 (FUEL SUPPLY
SYSTEM).