APRILIA 8140172, Service And Repair Manual

Page: 225 / 279

FUEL SUPPLY SYSTEM
4 - 26
RSV mille
◆
Check the vacuometer (3) for the vacuum value of a
cylinder and then of the other one.
NOTE
The vacuum value reading should be the same
for both cylinders.
Vacuum values for both cylinders:
300 ± 30 mbar at 1250 ± 100 rpm.
◆ Once the cylinders have been synchronized correctly
and the idling rpm adjusted, remove the vacuometer at-
tachment (1) and fit the intake flange (15).
a
WARNING
It is vital that the vacuometer intake flange (1) be re-
placed with the original intake flange (15).
a
WARNING
Slight differences in the vacuum values between the
two cylinders are acceptable only if the CO values fall
within the range of the preset parameters (from 0.8 to
1.3%).
If the CO values and/or the vacuum values do not fall
within the range of the preset parameters, the adju-
sting procedures must be repeated to restore the cor-
rect values.