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Просмотр инструкции снегоходы Ski Doo MX Z 2005, страница 667
Section 04 ENGINE MANAGEMENT (SDI)
Subsection 03 (COMPONENT INSPECTION, REPLACEMENT AND ADJUSTMENT)
Mechanical Inspection
Check that the throttle plate moves freely and
smoothly when depressing throttle lever.
IMPORTANT: The throttle body is designed to be
tamper proof. Changing the zero position stop
screw or synchronization screw or modifying
them in any way will not increase performance
but may cause poor startability and erratic idling.
Before replacing any part, check the following as
these could be causing the fault. Perform the test
while the engine is not running.
– Throttle cable adjustment too tight. Not return-
ing fully to idle stop.
– Throttle body idle set screw is loose or worn.
– Throttle plate is loose, worn or damaged.
– TPS is loose.
– Corroded or damaged wiring or connectors.
– Throttle body has been replaced and the Closed
Throttle reset has not been performed.
– ECM has been replaced and the Closed Throt-
tle reset has not been performed.
Electrical Inspection
Refer to THROTTLE POSITION SENSOR (TPS) in
this section.
Replacement
Removal
To remove the throttle body from engine, proceed
as follows:
– Disconnect connectors from ATS (Air Tempera-
ture Sensor) and APS (Air Pressure Sensor).
– Remove air intake silencer from throttle body.
– Install hose pinchers (P/N 295 000 076) on inlet
and outlet coolant hoses connected to throttle
body.
– Disconnect fuel line.
– Remove clamps and hoses for throttle body
heating from nipples.
– Disconnect connector from TPS.
– Disconnect throttle cable.
– Unscrew retaining clamps of throttle body.
A35C3WA
1
2
1. Throttle body
2. Clamp
– Slightly pull throttle body out.
Installation
Installation of the new throttle body is the reverse
of the removal procedure. Pay attention to the
following details.
Make sure that the retaining clamps are positioned
as shown in the following illustration.
A35C3XA
A
B
A. PTO side — 70°
B. MAG side — 55°
Refill engine coolant. If an important quantity of
coolant was spilled, bleed cooling system. Refer
to COOLING SYSTEM section.
Adjustment
Throttle Body Synchronization
CAUTION: It is not allowed to perform any
change on the synchronization screw.
146 mmr2005-126
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