Crankshaft Sensor Peak Voltage Check
To check the peak voltage, do the following procedures.
Disconnect the connector of the magneto lead connector
from the main harness.
Measure the voltage with each lead connected cor-
The correct value may not be obtained if
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).
Set the hand tester to DC 2.5 V range.
Connect the peak voltage adapter [A] to the tester and the
terminals of the magneto lead connector [B].
Special Tools - Hand Tester: 57001-1394
Peak Voltage Adapter: 57001-1415
Connection: Adapter Positive
Adapter Negative → White/Yellow Lead
Crank the engine by kicking the pedal several times to
measure the peak voltage of the crankshaft sensor.
Do not touch the metal portion of the probe in case
of measuring the voltage, or you may receive a se-
rious electric shock.
If the voltage is less than the specified, check the crank-
→ Green/White Lead
1.1 V or above
ELECTRICAL SYSTEM 16-19