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14. PERIODIC SERVICE
Ex2900 / 3200 Operator's Manual
2. Flushing the Cooling System
1. Fill the cooling system with water and common
flushing / cooling liquid. Follow the manufacturer’s
instructions.
2. Reinstall and retighten the radiator cap.
3. Start and run the engine until it reaches the operating
temperature.
Avoid injury:
●The engine and coolant can be hot. Avoid contact
with skin to prevent severe burns. ALWAYS wear
safety glasses when draining the cooling system.
4. Shut down the engine.
5. Open the radiator petcock and remove the drain plug.
6. Immediately drain the cooling system before rust and
dirt in it settle.
7. Close the radiator petcock, and reinstall the drain plug.
(A)Radiator petcock
3. Filling the Cooling System
IMPORTANT: Avoid damage.
●Use of an incorrect coolant mixture can damage the
radiator.
●NEVER operate the engine with plain water.
●NEVER use an antifreeze mixture with a concentration
of more than 50% water to coolant mixture.
●NEVER pour the coolant or water into the radiator while
the engine is hot.
NOTE:
●For adding coolant to the cooling system, use of High
Quality Permanent Type Antifreeze (Ethylene Glycol
with corrosion and rust inhibitor chemicals) is
recommended.
For the correct mixture ratio, see the manufacturer’s
directions on the coolant container.
1. Allow the radiator to cool down.
2. Fill the cooling system. The cooling system capacity is
approximately 1.2 US gal (4.5 L).
3. Reinstall and retighten the radiator cap.
4. Start and run the engine until it reaches the operating
temperature.
5. Shut down the engine.
6. Check the reserve tank coolant level, and add the
coolant as necessary.
7. Reinstall the side panel.
8. Lower the hood.
CAUTION
(A)
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