Yamaha 2014 MT-07 Service Manual page 349

• Reinstall each piston into its original cylinder.
2
3
New 4
4
5. Lubricate:
• Piston
• Piston rings
• Cylinder
(with the recommended lubricant)
Recommended lubricant
Engine oil
6. Offset:
• Piston ring end gaps
45˚
a,b
a. 2nd ring
b. Lower oil ring rail
c. Upper oil ring rail
d. Top ring
e. Oil ring expander
A. Exhaust side
7. Lubricate:
• Crankshaft pin
• Connecting rod big end bearing inner surface
(with the recommended lubricant)
a
b
1
c
d
A
45˚
c
90˚
d,e
CONNECTING RODS AND PISTONS
Recommended lubricant
Engine oil
8. Install:
• Connecting rod assemblies "1"
(into the cylinder and onto the crankshaft pin)
• Connecting rod caps
(onto the connecting rod)
TIP
• While compressing the piston ring with piston
ring compressor "2", install the connecting rod
assembly into the cylinder with the other hand.
• Make sure the "Y" marks "a" on the connecting
rods face towards the left side of the crank-
shaft.
• Make sure that the projection "b" on the con-
necting rod cap faces the same direction as the
"Y" mark "a" on the connecting rod.
• Apply Molybdenum disulfide oil to the threads
and seats of the connecting rod bolt.
Piston ring compressor
90890-05158
Piston ring compressor
YM-08037
9. Tighten:
• Connecting rod bolts "1"
5-84