- Тип техники
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Просмотр инструкции снегоходы Ski Doo MX Z 2005, страница 1325
Section 08 ELECTRICAL
Subsection 06 (TESTING PROCEDURE)
GENERAL
NOTE: The 4-TEC engines are equipped with an
alternator, not with a magneto. Refer to ALTER-
NATOR subsection for the checking procedure.
277 and 443 Engines
The RER dual trigger coil CDI system has an igni-
tion coil integrated to the MPEM.
MPEM is connected to a single ignition generator
coil via a 3-connector housing (BLACK and RED
wires).
MPEM is programmed to recognize a signal sent
by the switch located on snowmobile console.
When switch is activated, MPEM cuts off ignition
and engine rev drops at approximately:
ENGINE RPM
277 700
443 450
MPEM fires a spark at a great advance creating a
thrust which reverses engine rotation.
Second trigger coil located on crankcase takes
over to produce spark in reverse rotation.
A safety device is incorporated to MPEM prevent-
ing it from reading any signal coming from reverse
switch at following engine revs:
NO REVERSE SIGNAL
ENGINE
BELOW ABOVE
277 800 RPM 3500 RPM
443 1000 RPM 3500 RPM
Multi-Purpose Electronic Module
(MPEM) Connections
593 Engine
4
A32E3QA
3 2 1
1. Trigger coil
2. Cooling temperature sensor
3. High tension coil
4. DESS, ignition and engine stop switches, DESS pilot lamp
593 HO SDI Engine
For more informations concerning the Engine Con-
trol Module (ECM) refer to OVERVIEW in ENGINE
MANAGEMENT (2-TEC) section.
A32E3AA
TYPICAL — ECM
mmr2005-047 467
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