Yamaha YZF R1 2021 Owner's Manual page 95

3. Remove the engine oil filler cap,
the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
1. Engine oil filler cap
2
1
1. Engine oil drain bolt
2. Gasket
Periodic maintenance and adjustment
4. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
Tightening torque:
Engine oil drain bolt:
23 N·m (2.3 kgf·m, 17 lb·ft)
5. Refill with the specified amount of
the recommended engine oil.
Recommended engine oil:
Full synthetic
10W-40, 15W-50
Oil quantity:
Oil change:
3.90 L (4.12 US qt, 3.43 Imp.qt)
With oil filter removal:
4.10 L (4.33 US qt, 3.61 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
8-15
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.
1. Engine oil filler cap
2. O-ring
6. Check the oil filler cap O-ring for
damage, and replace it if neces-
sary.
ECA11621
7. Install and tighten the oil filler cap.
1
2
8