Yamaha WR450F Manuel D'atelier Du Proprietaire page 208

Temp.
-20 -10 0 10 20
10W-30
10W-40
15W-40
20W-40
20W-50
-4 14 30 50 68
ENGINE OIL LEVEL INSPECTION
°C
30 40 50
86 104
122
°F
a
b
3 - 15
(For USA and CDN)
Recommended oil:
At 5 ˚C (40 ˚F) or higher Å
Yamalube 4 (20W-40) or SAE
20W-40 type SG motor oil
(Non-Friction modified)
At 15 ˚C (60 ˚F) or lower ı
Yamalube 4 (10W-30) or SAE
10W-30 type SG motor oil
(Non-Friction modified)
and/or
Yamalube 4-R (15W-50)
(Non-Friction modified)
CAUTION:
Do not add any chemical additives.
G
Engine oil also lubricates the clutch and
additives could cause clutch slippage.
Do not allow foreign material to enter the
G
crankcase.
(Except for USA and CDN)
Recommended oil:
Refer to the following chart for
selection of oils which are suited
to the atmospheric temperatures.
Recommended engine oil classi-
fication:
API STANDARD:
API "SG" or higher grade
(Designed primarily for motor-
cycles)
CAUTION:
Do not add any chemical additives or use
G
oils with a grade of CD a or higher.
Do not use oils labeled "ENERGY CON-
G
SERVING II" b or higher. Engine oil also
lubricates the clutch and additives could
cause clutch slippage.
Do not allow foreign materials to enter the
G
crankcase.
5. Start the engine and let it warm up for
several minutes.
CAUTION:
When the oil tank is empty, never start the
engine.
INSP
ADJ