Yamaha YZF-R1B 2012 Service Manual page 333

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
4. Install:
• Piston "1"
(onto the respective connecting rod "2")
• Piston pin "3"
• Piston pin clip "4"
TIP
• Apply engine oil onto the piston pin.
• Make sure that the "Y" mark "a" on the con-
necting rod faces left when the punch mark
"b" on the piston is pointing up as shown.
• Install the piston pin clips, so that the clip
ends are 3 mm (0.12 in) "c" or more from the
cutout in the piston.
• Reinstall each piston into its original cylinder.
5. Lubricate:
• Piston
• Piston rings
• Cylinder
(with the recommended lubricant)
email: info@motomatrix.co.uk
CONNECTING RODS AND PISTONS
New
Recommended lubricant
Engine oil
6. Offset:
• Piston ring end gaps
a. Top ring
b. 2nd ring
c. Upper oil ring rail
d. Oil ring expander
e. Lower oil ring rail
A. Exhaust side
7. Lubricate:
• Crankshaft pins
• Connecting rod big end bearing inner sur-
face
(with the recommended lubricant)
Recommended lubricant
Engine oil
8. Check:
• Cylinder stud bolts
Cylinder stud bolt
8 Nm (0.8 m·kgf, 5.8 ft·lbf)
9. Install:
• Piston assemblies "1"
(into the cylinder "2")
Piston installing tool
90890-04161
YM-04161
ECA14B1040
If the projection "a" of the piston installing
tool damages, you cannot use it. Please
handle with care.
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