APRILIA Tuono V4 1100 Factory Service Station Manual page 354

Engine
•
Install a new O ring on the chain ten-
sioner.
REPLACE THE O RING UPON EACH REMOVAL.
•
Compress the chain tensioner com-
pletely, making sure that the total
length is 40.05 ± 0.5 mm (1.58 ± 0.02
in).
•
A washer must be installed between
the front crankcase and the chain ten-
sioner to ensure that the timing system
functions correctly.
•
This washer is available as a spare
part.
•
Fit the washer onto the front chain ten-
sioner then install the chain tensioner
in the relative seat in the crankcase,
ensuring that it is oriented correctly.
•
Take particular care during this step to
ensure that the washer fits correctly in
place; if the washer is bent or not seat-
ed in the correct position, the operation
of the timing system will be compro-
mised.
THE WASHER SHALL ONLY BE INSTALLED ON THE
FRONT CHAIN TENSIONER
ENG - 354
Tuono V4 1100 Factory