Polaris 2014 Sportsman 570 EF, Руководство по обслуживанию

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9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual
© Copyright 2013 Polaris Sales Inc.
IGNITION COIL
Operation Overview
The ignition coil is used to provide high voltage to fire the
spark plug. When the ignition key is on, DC voltage is
present in primary side of the ignition coil windings.
During engine rotation, an AC pulse is created within the
crankshaft position sensor for each passing tooth on the
flywheel. The two-tooth gap creates an “interrupt” input
signal, corresponding to specific crankshaft position. This
signal serves as a reference for the control of ignition
timing. The ECU then calculates the time interval
between the consecutive pulses, and determines when
to trigger the voltage spike that induces the voltage from
the primary to the secondary coil windings to fire the
spark plug.
Ignition Coil / Wire Testing
The ignition coil can be tested using an digital multimeter.
Use the following specification table and illustrations to
test the ignition coil.
TEST CONNECTION RESISTANCE
Primary Coil Coil Pack + and –
Pins 0.50Ω +/- 10%
Secondary Coil Coil Pack – and
Spark Plug Wire
Terminal 6.6kΩ +/- 10%
Spark Plug Wire Wire Connector
Terminal and
Spark Boot
Terminal 7.0kΩ +/- 10%
Coil Pack Connections
Spark Plug Wire Connections
FUEL SYSTEM - GENERAL