APRILIA RS 50 Workshop Manual page 64

Routine maintenance operations
ADJUSTMENT
NOTE
To adjust the chain it is necessary to use the
appropriate rear support stand
To adjust the chain tension:
Position the motorcycle on the appropriate rear
support stand , see (POSITIONING THE MOTOR-
CYCLE ON THE REAR SUPPORT STAND
Loosen the nut (1) to several turns.
NOTE
In order to make wheel centering in the swing-
ing arm easier, there are reference marks (2-3) on the
swing arm. See illustration above.
Loosen the two lock nuts (4).
Adjust the tension adjusters (5) to obtain the appropriate
chain play, ensuring that the edge of tension adjuster is in
the same position with regard to the reference marks (2-
3) on each side of your motorcycle.
Tighten the two lock nuts (4).
Tighten the nut (1).
Wheel nut tightening torque:
73.8 Ft-lb (10 kgm) [100 Nm].
Check the chain play again, see (CHECKING THE PLAY).
CHECKING THE WEAR OF THE CHAIN AND SPROCKETS
In addition to the check inspect the chain and sprockets to
make sure that there are no:
Damaged rollers.
Loose pins.
Dry, rusty, crushed or seized links.
Excessive wear.
Sprocket or teeth excessively worn or damaged.
CAUTION
If chain rollers are damaged and pins are loose, both
sprockets as well as the chain must be replaced.
CAUTION
Lubricate the chain frequently, especially if it
displays any rust or if it is dry to the touch. If, after
lubricating the chain, it still has links which cannot
be turned easily, the chain must be replaced.
Finally, check the wear of the rear fork protection shoe.
WARNING
Keep your fingers well clear of the chain and
sprocket, especially if you are turning the rear
wheel while working on the motorcycle. You can
easily be seriously injured if a finger is caught
between the chain and sprocket.
ch. 2
.
).
Release 00
1
3
4
5
2001-03
RS 50
2
4
2
5
2-35