Yamaha YFM7FGPW Service Manual page 119

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CHANGING THE COOLANT
12.Fill:
• coolant reservoir
(with the recommended coolant to the maxi-
mum level mark a)
13.Install:
• coolant reservoir cap 1
14.Bleed:
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• coolant system
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a. Remove the V-belt cooling duct 2 1.
b. Loosen the water pump air bleed bolt 2,
without removing it, to allow all of the air to
escape from the air bleed bolt hole.
c. When coolant begins to flow out of the bolt
hole, tighten the water pump air bleed bolt
to specification.
d. Loosen the cylinder head air bleed bolt 3,
without removing it, to allow all of the air to
escape from the air bleed bolt hole.
e. When coolant begins to flow out of the bolt
hole, tighten the cylinder head air bleed bolt
to specification.
f. Install the V-belt cooling duct 2.
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15.Start the engine, warm it up for ten minutes,
and then rev the engine five times.
16.Pour the recommended coolant into the
radiator until it is full.
17.Stop the engine and allow it to cool. If the
coolant level has dropped after the engine
has cooled, add sufficient coolant until it
reaches the top of the radiator, and then
install the radiator cap.
18.Start the engine, and then check for coolant
leakage.
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CHK
ADJ
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Water pump air bleed bolt
10 Nm (1.0 m · kg, 7.2 ft · lb)
Cylinder head air bleed bolt
10 Nm (1.0 m · kg, 7.2 ft · lb)
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