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use and maintenance
Classic 125
35
ADJUSTMENT (Fig. 31)
If after the check it is necessary to adjust
the chain tension, proceed as follows:
◆
Loosen the nut (1) that fastens the rear
wheel pin.
◆
Loosen the nut (2) of the antirotation pin.
◆
Adjust the slack by means of the left (3)
and (4) adjusters, making sure that the
reference numbers visible inside the
slots (5) are the same on both sides.
◆
Once the operation has been completed,
tighten the rear wheel pin fastening nut.
Nut driving torque: 100 Nm (10 kgm).
◆
Tighten the nut (2) of the antirotation pin.
◆
Check the chain slack, see p. 34
(CHECKING THE SLACK).
CHECKING THE WEAR OF CHAIN,
PINION AND CROWN
Check the chain and the sprockets and
make sure that they do not present:
◆
Damaged rollers.
◆
Loose pins.
◆
Dry, rusty, crushed or seized links.
◆
Incorrect adjustment.
◆
Excessive wear.
◆
Lacking O rings.
◆
Sprocket or teeth excessively worn or
damaged.
If the chain rollers are damaged, the pins
are loose and/or the O rings are damaged
or lacking, it is necessary to change the
chain.
Lubricate the chain frequently,
especially if there are dry or
rusty parts.
The crushed or seized links must be lu-
bricated and made work again.
If t hi s is no t po ssi ble , con ta ct an
APRILIA
Official Dealer, who will provide
for changing the chain.
LUBRICATION AND CLEANING
The gearing chain is provided
with O rings among the links, in
order to keep the grease inside
them. Carry out the adjustment, lubrica-
tion, cleaning and change of the chain
with great care.
Remember: 1 miles = 1.6 km
1 km = 0.625 miles
Lubricate the chain every 500 km or when-
ever necessary.
Lubricate the chain with spray grease for
chains only, see p. 58 (LUBRICA NT
CHART).
Never wash the chain with water
jets, steam jets, high-pressure
water jets and highly inflamma-
ble solvents.
Fig. 31
a
a
c
a