Water Temperature Sensor; Exhaust Temperature Sensor - Yamaha WaveRunner XLT1200 Service Manual

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ELEC
IGNITION SYSTEM

WATER TEMPERATURE SENSOR

1. Measure:
Water temperature sensor resistance
(at the specified temperature)
Out of specification → Replace.
Water temperature sensor
resistance:
0 ˚C (32 ˚F): 24.0–37.1 kΩ
100 ˚C (212 ˚F): 0.87–1.18 kΩ
200 ˚C (392 ˚F): 104–153 Ω
Measurement steps:
Ice the water temperature sensor and
measure the resistance.
Suspend the water temperature sen-
sor in a container filled with oil.
Slowly heat the oil.
Measure the resistance when the spec-
ified temperature is reached.

EXHAUST TEMPERATURE SENSOR

1. Measure:
Exhaust temperature sensor resis-
tance (at the specified temperature)
Out of specification → Replace.
Exhaust temperature sensor
resistance:
300 ˚C (572 ˚F): 73–241 kΩ
600 ˚C (1,112 ˚F): 0.86–1.58 kΩ
900 ˚C (1,652 ˚F): 64–90 Ω
Measurement steps:
Heat the exhaust temperature sensor
using an electric furnace or equivalent.
Measure the resistance when the spec-
ified temperature.
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