Use And Maintenance Rs; Drive Chain - APRILIA RS 50 - 2004 Manual

DRIVE CHAIN

Carefully read p. 39 (MAINTENANCE).
The vehicle is equipped with a chain with
ring link joint.
In case of disassembly and reassembly of
the chain, make sure that the clip (1) of the
ring link joint has its open side opposite the
travelling direction (see figure).
WARNING
An excessive slackening of the chain
can cause it to come off of the sprock-
ets, which often results in accidents or
serious damage to the vehicle.
Periodically check the slack and adjust
it if necessary, see p. 51 (ADJUST-
MENT).
To change the chain, contact an aprilia
Official Dealer, who will ensure you
prompt and accurate servicing.

use and maintenance RS 50

50
CAUTION
Incorrect maintenance may cause the
untimely wear of the chain and/or dam-
ages to the pinion and/or the crown.
Carry out the maintenance operations
more frequently if you use the vehicle in
difficult conditions or on dusty and/or
muddy roads.
CHECKING THE SLACK
To check the slack, proceed as follows:
◆
Stop the engine.
◆
Position the vehicle on the stand.
◆
Position the shifting lever in neutral.
◆
Make sure that the vertical oscillation, in
an intermediate point between pinion
and crown in the lower part of the chain,
is about 25 mm.
◆
Move the vehicle forwards, or turn the
wheel, in order to be able to check the
vertical oscillation of the chain even
when the wheel turns; the slack must be
constant in all the rotation phases of the
wheel.
CAUTION
If in some positions the slack is higher
than in others, this means that there are
crushed or seized links; in this case,
contact an aprilia Official Dealer. To
prevent the risk of seizures, lubricate the
chain frequently, see p. 51 (CLEANING
AND LUBRICATION).
If the slack is uniform, but higher or lower
than 25 mm, adjust it, see p. 51 (AD-
JUSTMENT).