APRILIA Tuono 660 2021 Service Station Manual page 216

Engine
•
Using a punch, simulate the tension of
the transmission chain and check that
the holes of the fixing screws of the
timing gears are centred with respect
to the slotted holes of the gears them-
selves.
•
Insert and hand tighten one screw (11)
of the timing gear onto the intake shaft.
•
Position the plate (12) complete with
the chain slider and after inserting the
screws, tighten them to the prescribed
torque.
•
After verifying correct operation, use a
rubber hammer to arm the chain ten-
sioner.
ENG - 216
RS 660 - Tuono 660