Coolant - Yamaha WR450F Owner's Manual

mix any chemical additives. Do
not use oils with a diesel speci-
fication of "CD" or oils of a high-
er quality than specified. In
addition, do not use oils labeled
"ENERGY CONSERVING II" or
higher.

Make sure that no foreign mate-
rial enters the crankcase.
13. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
14. Turn the engine off, wait a few min-
utes until the oil settles, and then
check the oil level and correct it if
necessary.
15. Install the engine guard by install-
ing the bolts.
Tightening torque:
Engine guard bolt:
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
NOTICE
After changing the engine oil, make
sure to check the oil pressure as de-
PERIODIC MAINTENANCE AND ADJUSTMENT
scribed below.

Loosen the bleed bolt.

Start the engine and keep it
idling until oil flows out. If no oil
comes out after one minute,
turn the engine off immediately
so it will not seize. If this occurs,
have a Yamaha dealer repair the
vehicle.

After checking the oil pressure,
tighten the bleed bolt to the
specified torque.
1. Bleed bolt
2. Gasket
ECA11231
Tightening torque:
Bleed bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)

Coolant

The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
To check the coolant level
TIP
2 1


6-12
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.
Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
2. Remove the radiator cap and
check the coolant level in the radi-
ator. WARNING! Never attempt
to remove the radiator cap when
the engine is hot.
[EWA10381]
EAU20070
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EAUM1295
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