Yamaha DT200L 1984-1988 Service Manual page 112

COOL
THERMOSTATIC VALVE
—(D
95°C (203°F)
80. 5~83. 5°C
(177-182°F)
@
Inspection
1. Inspect:
• Thermostatic valve
Valve does not open at 80. 5 ~ 83. 5°C
(177 ~ 182°F) - Replace.
Inspection Steps:
• Suspend thermostatic valve in a vessel.
• Place reliable thermometer in a water.
• Heat water slowly.
• Observe thermometer, while stirring water
continually.
LD Thermometer
Full open
(3) Opening sequence begins
(S)<S> A A <^)
3 mm (0. 12 in)
82°±1.5°C
(180°±35°F)
95°C
(203°F>
(4) Water
® Thermostatic valve
Vessel
Open
Close
NOTE:
Thermostatic valve is sealed and its setting is
specialized work. If its accuracy is in doubt,
always it. A faulty unit could cause serious
overheating or overcooling.
2. Inspect:
• 0-ring
Wear/Damage -* Replace.
• Gasket
Damage — Replace.
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