Yamaha RS90K Manuel D'atelier page 580

COOL
THERMOSTAT
3. Install:
• Coolant temperature sensor
(to the thermostat housing)
Coolant temperature sensor:
23 Nm (2.3 m · kg, 17 ft · lb)
CAUTION:
Use extreme care when handling the coolant
temperature sensor. Replace any part that was
dropped or subjected to a strong impact.
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