Inspecting The Throttle Unit - APRILIA TUONO 1000 Workshop Manual

TUONO 1000
3.3.3.

INSPECTING THE THROTTLE UNIT

INJECTOR OPERATION TEST
NOTE The injectors can be tested electrically.
•
Check the following components:
- electrical wiring and connections;
- injector or ECU injection signal.
Throttle body
•
Clean all throttle body (1) openings and ducts using
compressed air.
•
Check the intake pressure sensor tubes (2) for
clogging.
•
Check the throttle valve unit and the wire securing
mechanism (3) for any mechanical damage.
NOTE Synchronise the cylinders when replacing the
synchronisation screws (4) or the O-rings (5).
•
Loosen the two cylinder synchronisation screws (4)
only if there is an air leak.
•
When replacing the ball joint linkage (6), unfasten the
linkage from the throttle valve control lever (7) and
from the accelerator belt roller (8).
•
After having fitted a new ball joint linkage (6) ensure
that it moves freely.
FUEL SYSTEM
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