Yamaha YZF-R1B 2012 Service Manual page 60

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Item
Starter motor bolt
Rear speed sensor bolt
TIP
Cylinder head nut
Use new nuts and washers.
1. Apply engine oil to nut thread, mating surface and washer.
2. Tighten the nut to 40 Nm (4.0 m·kgf, 29 ft·lbf).
3. Loosen all the nut one by one following the tightening order and then tighten the nuts 1–7 and 10
to 20 Nm (2.0 m·kgf, 14 ft·lbf) and nuts 8 and 9 to 25 Nm (2.5 m·kgf, 18 ft·lbf) again.
4. Tighten the nut to 120°.
TIP
Connecting rod cap bolt
Use new bolts.
1. Apply Molybdenum-disulfide oil to bolt thread and cap/nut mating surface.
2. Tighten the bolt to 20 Nm (2.0 m·kgf, 14 ft·lbf).
3. Retighten the bolt further to reach the specified angle of 145°–155°.
TIP
Crankcase bolt (main journal)
1. Lubricate the bolts thread, mating surfaces and washers with engine oil.
2. First, tighten the bolts to approximately 30 Nm (3.0 m·kgf, 22 ft·lbf) with a torque wrench.
3. Loosen all the bolts one by one following the tightening order and then tighten them to 18 Nm
(1.8 m·kgf, 13 ft·lbf) again.
4. Retighten the bolts further to reach the specified angle of 60°.
email: info@motomatrix.co.uk
Thread
Q'ty
size
M6 2 12 Nm (1.2 m·kgf, 8.7 ft·lbf)
M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
2-19
TIGHTENING TORQUES
Tightening torque Remarks
LT