Yamaha MBK MW125 2014 Service Manual

THERMOSTAT6-6EAS31248CHECKING THE THERMOSTAT ASSEMBLY1. Check:• Thermostat “1”Does not open at 80–84°C (178–183°F) →Replace.▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼▼▼a. Suspend the thermostat “1” in a container “2”filled with water.b. Slowly heat the water.c. Place a thermometer “3” in the water.d. While stirring the water “4”, observe the ther-mostat and thermometer’s indicated temper-ature.e. Check the thermostat element position “5”.Same level for the thermostat element upperend and the hole lower line “a” at 95 °C(203°F)TIPIf the accuracy of the thermostat is in doubt, re-place it. A faulty thermostat could cause seriousoverheating or overcooling.▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲EAS30445INSTALLING THE THERMOSTATASSEMBLY1. Fill:• Cooling system(with the specified amount of the recom-mended coolant)Refer to “CHANGING THE COOLANT” onpage 3-21.2. Check:• Cooling systemLeaks → Repair or replace any faulty part.Refer to “INSTALLING THE RADIATOR” onpage 6-3.3. Measure:• Radiator cap opening pressureBelow the specified pressure → Replace theradiator cap.Refer to “CHECKING THE RADIATOR” onpage 6-3.11234a5A. Fully closedB. Fully openBA82 ± 2.0˚C 95˚C4.5 mm