APRILIA RS4 125 Service Station Manual page 240

Chassis
IF CLEARANCE IS GREATER AT SOME POSITIONS, THIS
MEANS THAT SOME CHAIN LINKS ARE FLATTENED OR
JAMMED.
TO AVOID RISK OF SEIZURE, LUBRICATE THE CHAIN ON
A REGULAR BASIS.
CAUTION
GET A SPECIFIC REAR SERVICE STAND (OPT) TO AD-
JUST THE CHAIN.
If you need to adjust the chain tension after the
check, perform the following.
•
Place the vehicle on its optional rear
service stand.
•
Working from both sides, loosen the
nut (1) completely.
•
Actuate on the adjuster screws (2) and
adjust the chain clearance according to
the references (3).
•
Check that the references (3) are
aligned on both sides.
•
Then tighten the nuts (1).
CAUTION
IF CLEARANCE IS GREATER AT SOME POSITIONS, THIS
MEANS THAT SOME CHAIN LINKS ARE FLATTENED OR
JAMMED.
TO AVOID RISK OF SEIZURE, LUBRICATE THE CHAIN ON
A REGULAR BASIS.
CAUTION
GET A SPECIFIC REAR SERVICE STAND (OPT) TO AD-
JUST THE CHAIN.
CHAS - 240
RS4 125