8.10
ELECTRICAL
9923983 - 2012-2013 RZR 170 Service Manual
© Copyright 2012 Polaris Sales Inc.
RPM Ignition Limiter Functions
NOTE: The CDI box reads the RPM signal from the stator. The CDI box acts as a limiter by retarding the
ignition timing if RPM reaches the specified limit. In reverse gear, the CDI box retards ignition timing and
limits RPM once it receives a ground path from the transmission switch dark blue (DB) wire indicating the
vehicle is in reverse. The CDI box can also receive a ground path from the TRS switch causing the CDI box to
retard timing and limit RPM if the throttle cable becomes slack or stuck.
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