Yamaha YZ85(Z) Owner's Manual page 55

is not available, use distilled wa-
ter or soft tap water instead. Do
not use hard water or salt water
since it is harmful to the engine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will
be reduced.
[ECA10472]
To change the coolant
1. Place the vehicle on a level sur-
face and let the engine cool if nec-
essary.
2. Place a container under the engine
to collect the used coolant.
3. Remove the coolant drain bolt and
the gasket, and then the radiator
cap to drain the cooling system.
PERIODIC MAINTENANCE AND ADJUSTMENT
WARNING! Never attempt to re-
move the radiator cap when the
engine is hot.
1. Coolant drain bolt
2. Gasket
EAUM1314
1. Radiator cap
4. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
5. Install a new gasket and the cool-
[EWA10381]
2
6. Pour the recommended coolant
1
1
7. Install the radiator cap, start the
8. Remove the radiator cap to check
7-11
ant drain bolt, and then tighten the
bolt to the specified torque.
Tightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
into the radiator until it is full.
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibitors
for aluminum engines
Coolant quantity:
Radiator capacity (including all
routes):
0.54 L (0.57 US qt, 0.48 Imp.qt)
engine, let it idle for several min-
utes, and then turn it off.
the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the bottom of the
radiator filler neck, and then install
the radiator cap.
7