Inspecting The Throttle Body; Testing The Injectors; Throttle Body; Throttle Valve Potentiometer - APRILIA RST mille Futura 2001 Service Manual

RST mille
USA

4.10 INSPECTING THE THROTTLE BODY

4.10.1 TESTING THE INJECTORS

DANGER
Gasoline is extremely flammable and becomes
explosive under certain conditions.
KEEP GASOLINE AWAY FROM CHILDREN.
NOTE
The injectors may be tested even when
mounted.
Check the following components:
- electrical cables and connections;
- injector or injection signal of the electronic control unit,
see 6.5 (IGNITION/INJECTION SYSTEM).
Checking injector resistance:
See 6.6.1 (CHECKING THE INJECTORS).

4.10.2 THROTTLE BODY

WARNING
Use only neutral cleansers.
Use only proprietary gasket removers, degreasers or
cleansers that do not require heating.
Clean all openings and passages in the throttle body
with compressed air.

4.10.3 THROTTLE VALVE POTENTIOMETER

WARNING
The two HS bolts fastening the throttle valve
potentiometer (1) are painted over during the
manufacturing process, and cannot be loosened. The
throttle valve potentiometer may be adjusted only
when being replaced.
Place the throttle valve position sensor (1) horizontally
on the throttle valve shaft, and turn it downward.
NOTE ®
Apply LOCTITE
(2).
Tighten the two hex bolts M410x12 (2).
Tightening torque for bolts (2): 2.6 ftlb (3.5 Nm).
TTo line up the throttle position sensor (1), see 4.10.6
(ALIGNING THE THROTTLE VALVE POSITION
SENSOR).
Release 00/2002 - 03
243 on the thread of the bolts
1
2
FUEL SYSTEM
2
4
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