49
1
2
F.52
H E A T S E N S O R C I R C U I T S Y S T E M
H E A T S E N S O R C I R C U I T S Y S T E M
Blue cable between key switch and heat sensor
connector is interrupted.
Resume connection.
See “Wiring diagram” (P.8).
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•
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NO
OK
GENERAL MATTERS
The carburettor is
fi
tted with a heater called “PTC”. It is activated when the “heat sensor” under the left hand side
casing is reading a temperature of < 3°C.
The “PTC” heater keeps the temperature of the carburettor constant, hence facilitating movement of the throttle valve.
CHECKING “PTC” HEATER CIRCUIT AND HEAT SENSOR
1. Check voltage level of “heat sensor”
2. Check voltage level of “PTC” heater
3. Check resistance of “PTC” heater
1.
Check voltage level of “heat sensor”
Disconnect two-way connector
(1)
of heat sensor
(2).
Connect
Tester (20 V DC)
as follows:
Terminal (+) of Tester
Blue
cable.
Terminal (-) of Tester
Chassis grounding
.
Turn key “ON”.
Power measured must be > 12 V.
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Summary of Contents for X3Mnourd
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