2001 YAMAHA YFM400F cooling

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5. Remove the radiator cap.
6. Remove the reservoir tank cap.
7. Disconnect the hose on the reservoir tank
side and drain the coolant from the reser-
voir tank.
8. After draining the coolant, thoroughly
flush the cooling system with clean tap
water.
9. Replace the coolant drain bolt washer if it
is damaged and tighten the coolant drain
bolt to the specified torque.
Tightening torque:
Coolant drain bolt:
10 Nm (1.0 m.kg)
1. Coolant reservoir drain hose
1. Boulon de vidange du liquide de refroidissement
1. Manguera de drenaje del depósito de refrigerante1. Radiator cap
1. Bouchon du radiateur
1. Tapa del radiador

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12. Install the radiator cap.
13. Run the engine several minutes. Stop the
engine and recheck the coolant level in
the radiator. If it is low, add more coolant
until it reaches the top of the radiator.
14. Fill the reservoir tank with coolant up to
maximum level.
15.Install the reservoir tank cap and check for
coolant leakage.NOTE:If any leakage is found, ask a Yamaha dealer toinspect the cooling system.
16. Install the panel and the front carrier.
EBU00283
Front axle boots
Check the protective boots for holes or tears. If
any damage is found, have them replaced by a
Yamaha dealer.
1. Front axle boot (´ 2 each side)
1. Soufflet d’axe avant (´ 2 de chaque côté)
1. Guardapolvo de eje delantero (´ 2 en cada lado)

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EBU00641
V-belt cooling duct check hose
If dust or water collects in this hose, remove
the hose and clean it.
1. V-belt cooling duct check hose (Left front side of ATV)
1. Flexible de contrôle du conduit de refroidissement de la courroie
trapézoïdale (à l’avant gauche du VTT)
1. Manguera de comprobación del conducto de
enfriamiento de la correa trapezoidal
(lado frontal izquierdo del ATV)

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1. V-belt cooling intake box check hose
(Above V-belt cooling duct)
1. Flexible de contrôle du boîtier d’admission d’air de
refroidissement de la courroie trapézoïdale (au-dessus du conduit
de refroidissement de la courroie trapézoïdale)
1. Manguera de comprobación de la caja de admisión de
enfriamiento de la correa trapezoidal
(encima del conducto de enfriamiento de la correa
trapezoidal)

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Engine overheatingNOTE:If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that itis changed to the recommended coolant as soon as possible.
WARNING
Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by
hot fluid and steam blown out under pressure. Always put a thick rag over the cap when opening.Allow any remaining pressure to escape before completely removing the cap. Wait until the
engine has cooled.
Check the coolant level in the
reservoir tank and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See NOTE.)
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.