Dismount / Renew Solenoid Valve For Epc; Check Of Solenoid Valve For Epc; Controller Of The Epc System - KTM 400-660 LC4 1998-2005 Repair Manual

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Dismount / renew solenoid valve for EPC

– Remove seat, side covers, and tank with spoilers.
– Unplug the solenoid-valve connector.
– Disconnect the two hoses, and pull solenoid valve
out of the holder.
– Insert new solenoid valve into the holder.
– Connect the two hoses, and plug in connector.

Check of solenoid valve for EPC

NOTE: When you turn on the ignition, the solenoid valve must open for
approx. 1 second. During this process, you can hear a slight clicking
noise.
– For checking, disconnect the 2-pole connector
valve.
– Now, connect a 12V battery to both terminals of the solenoid valve.
– When closing the power circuit, a clicking noise must be audible in the
solenoid valve (the membrane opens).
– If you cannot hear any clicking noise, you have to replace the solenoid
valve.

Controller of the EPC system

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NOTE: The controller cannot be checked by means of standard
measuring methods.
If malfunctions develop in the EPC system, start by checking:
solenoid valve
microswitch
plug-and-socket connection
contact screws at engine
hose from magnetic valve to carburetor
– If the above components are okay, the controller has to be replaced.
!
B
EFORE CONNECTING THE CONTROLLER
. O
TURN OFF THE IGNITION THERWISE
.
MAY DEVELOP
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and cables
CAUTION
,
IT IS ABSOLUTELY NECESSARY THAT YOU
,
MALFUNCTIONS IN THE ELECTRONIC SYSTEM
7-18E
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upwards and
at the solenoid
!