Yamaha Vmax VMX17C 2009 Service Manual page 362

TIP
Be sure to install the piston rings so that the
manufacturer marks face up.
4. Install:
• Piston "1"
(onto its respective connecting rod "2")
• Piston pin "3"
• Piston pin clips "4" New
TIP
• Apply engine oil onto the piston pin.
• Make sure that the "Y" mark "a" on the connect-
ing rod is facing to the right of the piston when
the punch mark "b" on the piston is pointing up.
Refer to the illustration.
• When installing a piston pin clip, make sure
that the clip ends are positioned away from the
cutout in the piston as shown in the illustration.
• Reinstall each piston into its original cylinder
(numbering order starting from the left: #1 to
#4).
b
1
4 New
CONNECTING RODS AND PISTONS
2
a
3
4 New
5-89
c. More than 3 mm (0.12 in)
5. Lubricate:
• Piston
• Piston rings
• Cylinder
(with the recommended lubricant)
Recommended lubricant
Engine oil
6. Offset:
• Piston ring end gaps
b,d
a. Top ring
b. Lower oil ring rail
c. Upper oil ring rail
d. 2nd ring
e. Oil ring expander
A. Exhaust side
7. Lubricate:
• Connecting rod bolt threads
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide oil
8. Lubricate:
• Crankshaft pins
• Big end bearings
• Connecting rod big end inner surface
(with the recommended lubricant)
c
4
A
c
90˚
90˚
45˚
a,e