APRILIA Tuono V4 1100 Factory Service Station Manual page 488

Chassis
inspection
To check the wear of the drive chain, use the chain
checking instrument, P/N: Ognibene -
529510001.
The different chain pitches which may be checked
with the instrument are indicated on the instrument
itself. There are three reference markings for each
chain pitch indicated on the instrument. These in-
dicate (from right to left) the correct measurements
for:
1. New chain with length near nominal value;
2. Chain with chain stretch of 1.5%;
3. Chain with chain stretch of 3%, which must
therefore be replaced in accordance with ap-
plicable legislation.
Perform the procedure described as follows to
check chain wear:
•
Tauten the chain.
•
Place the jaws of the tool on the rollers
at the opposite ends of a STRAIGHT
length of chain consisting of 8 chain
links.
•
Check that the notch on the sliding jaw
matches the correct marking on the in-
strument.
Installing
•
After fitting the chain on the pinion and
on the crown, put the inner O-rings (1)
back onto the hammerlock pins (2) and
connect the two ends of the transmis-
sion chain.
CHAS - 488
Tuono V4 1100 Factory