Yamaha WaveRunner GP1300R Service Manual page 390

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ELEC
IGNITION SYSTEM
COOLING WATER TEMPERATURE
SENSOR
1. Measure:
• Cooling water temperature sensor
resistance
(at the specified temperatures)
Out of specifications → Replace.
Cooling 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 cooling water temperature sensor
and measure the resistance when the
specified temperature is reached.
• Suspend the cooling water temperature
sensor in a container filled with oil.
• Slowly heat the oil.
• Measure the resistance when the speci-
fied temperatures are reached.
EXHAUST TEMPERATURE SENSOR
1. Measure:
• Exhaust temperature sensor resistance
(at the specified temperatures)
Out of specifications → 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 speci-
fied temperatures are reached.
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