Yamaha YZF-R1 2022, Manual

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Installing the Crankcase
1. Tighten the b olts in the tightening
sequence of 1 to 10 to 20 N•m (2.0 kg•m).
2. After loosening the bolts once in the
tightening sequence of 1 to 10, retighten
them one by one to 15 N•m (1.5 kg•m).
(Note: Do not loosen all bolts at once.
Repeat loosening and tightening operation
one by one bolt.)
3. Retighten the bolts in the tightening
sequence of 1 to 10 to a turn-of-nut angle
of 75°±5°.
4. Tighten the b olts in the tightening
sequence of 11 to 20 to 24±2 N•m (2.4±0.2
kgf•m).
5. Tighten the b olts in the tightening
sequence of 21 to 40 to 10±2 N•m (1.0±0.2
kgf•m).
TIP
The numbers 1 to 40 show the sequence
in which the bolts are tightened.
Apply engine oil to the bolts 1 to 10, 21
to 27 and 29 to 39, and the both sides of
the washer. Apply screw rock agent to
the bolts 28 and 40 (apply engine oil to
thread part, bearing surface and O-RING
part of the bolts 11 to 20. Do not reuse a
mended O-RING.