Yamaha WR25RB Owner's Manual page 61

Recommended oil:
See page 9-1.
Oil quantity:
Without oil filter element replace-
ment:
1.30 L (1.37 US qt, 1.14 Imp.qt)
With oil filter element replacement:
1.40 L (1.48 US qt, 1.23 Imp.qt)
TIP
Be sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.
NOTICE
In order to prevent clutch slip-

page (since the engine oil also
lubricates the clutch), do not
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.
11. Start the engine, and then let it idle
for several minutes while checking
PERIODIC MAINTENANCE AND ADJUSTMENT
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
12. Turn the engine off, wait a few min-
utes until the oil settles, and then
check the oil level and correct it if
necessary.
NOTICE
After changing the engine oil, make
sure to check the oil pressure as de-
scribed below.
Loosen the bleed bolt.

ECA11620 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.
7-15
ECA11231
1. Bleed bolt
Tightening torque:
Bleed bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
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