Cylinder Synchronisation - APRILIA ETV mille Workshop Manual

FUEL SYSTEM

4.10.4 CYLINDER SYNCHRONISATION

Read 0.5.1 (GENERAL
INFORMATION) and 1.2.1 (FUEL) carefully.
Erratic idling is a
synchronisation.
The cylinders must be synchronised before setting the
CO rate, see 4.10.5 (SETTING THE CO RATE).
!
Take a short ride (allow a few kilometres» riding
distance) to warm engine up to normal operating
temperature.
WARNING
The cylinders must be synchronised with a hot
engine:
!
Coolant temperature should be 80-100 °C (176-212
°F).
!
Room temperature should be 20-30 °C (68-86 °F).
NOTE
Make sure to have a vacuum gauge (1) ready at
hand .
CAUTION
Fuel vapours are harmful to human health.
Ensure the room is well ventilated before proceeding.
Do not inhale fuel vapours.
Avoid contact with skin.
Do not smoke or use bare flames.
Do not release fuel into the environment.
!
Remove the left-hand
(REMOVING THE SIDE BODY PANELS).
!
Extract the two service hoses (2) located under the
side panel on the left-hand side of the motorcycle.
!
Take off the blanking caps and connect the two service
hoses (2) to the vacuum gauge lines (1) using two 6-
mm fittings.
!
Turn the two air by-pass screws (3) of the throttle body
fully in.
!
Turn one of the by-pass screws (3) √ the other one
must be turned in fully during the whole procedure √
until the meter Led is on the zero line in the centre of
the screen.
4 - 18 -
00
PRECAUTIONS
sign of improper cylinder
lower panel, see 7.1.3
AND
ETV mille
1
2
3
Release 00/2004 - 04