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Crankshaft Sensor Inspection - Kawasaki KLX110 Service Manual

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Ignition System
Crankshaft Sensor Peak Voltage Check
To check the peak voltage, do the following procedures.
Disconnect the alternator lead connector from the main
harness (see Alternator Cover Removal).
Measure the voltage with each lead connected cor-
rectly.
The correct value may not be obtained if
disconnected.
Maintain the correct value of compression pressure for
the cylinder (Be sure to measure the voltage with the
spark plug installed to the cylinder head).
Connect the peak voltage adapter [A] to the digital meter
and the terminals of the alternator lead connector [B].
Special Tool - Peak Voltage Adapter: 57001-1415
Type: KEK-54-9-B
Connection:
Blue/Yellow
Lead [C]
Ground
Crank the engine by pushing the starter button several
times with the transmission gear in neutral to measure
the peak voltage of the crankshaft sensor.
Crankshaft Sensor Peak Voltage
Standard:
DC 2 V or more
Electrical equipment can cause serious electrical
shock. To avoid being shocked, do not touch the
metal portion of the probe when measuring voltage.
If the voltage is less than the specified, check the crank-
shaft sensor (see Crankshaft Sensor Inspection).
If the crankshaft sensor is good, check the other parts
(see the flow chart in this section).
If the all parts are good, replace the igniter.

Crankshaft Sensor Inspection

Remove:
Alternator Lead Connector (see Alternator Cover Re-
moval).
Using a digital meter [A] and connect it to the Blue/Yellow
lead [B] in the connector and the ground.
If there is more resistance than the specified value, the
coil has an open lead and must be replaced.
less than this resistance means the crankshaft sensor is
shorted, and must be replaced.
Crankshaft Sensor Resistance
50 ∼ 200 Ω at 20°C (68°F)
Standard:
NOTE
Adapter
Digital Meter
Red Lead
Black Lead →
WARNING
ELECTRICAL SYSTEM 15-33
(+)
(–)
Much

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