47
use and maintenance Rally 50
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Carefully read page 35 (MAINTENANCE).
Remember: 1 mile = 1.6 km
1 km = 0.625 miles
Adjust the idling after the first 500 km and
every time it is irregular.
To carry out this operation, proceed as fol-
lows:
◆
Drive for a few miles until the engine
reaches the normal running temperature,
then stop it.
◆
Position the vehicle on the stand.
◆
Remove the inspection cover, see p. 46
(REMOVING THE INSPECTION COV-
ER).
◆
Connect an electronic revolution counter
to the spark plug cable.
◆
Start the engine, see p. 30 (STARTING).
The minimum speed of the engine (idling)
must be about 1800 ± 100 rpm; in this case
the engine does not make the rear wheel ro-
tate.
If necessary:
◆
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.
◆
Act on 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.
◆
Close the inspection cover.
Do not act on the air adjusting
screw, to avoid variations of the
carburation setting.
If necessary, contact your APRILIA
Official Dealer.
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4(%!##%,%2!4/2#/.42/,
Carefully read page 35 (MAINTENANCE).
The ideal slack of the accelerator control
should be about 2-3 mm.
To adjust the slack, proceed as follows:
◆
Remove the protection element (2).
◆
Loosen the nut (3).
◆
Act on the adjuster (4) placed at the be-
ginning of the accelerator control cable.
Once you have carried out the adjustment,
tighten the nut (3) and put back the protec-
tion element (2).
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