Yamaha YZF-R6 Service Manual page 215

CONNECTING RODS AND PISTONS
4-75
2. Install:
S piston 1
(onto the respective connecting rod 2 )
S piston pin 3
S piston pi clip 4
New
NOTE:
S Apply engine oil onto the piston pin.
S Make sure that the "Y" mark a on the connect-
ing rod faces left when the arrow mark b on
the piston is pointing up. Refer to the illustra-
tion.
S Reinstall each piston into its original cylinder
(numbering order starting from the left: #1 to
#4).
3. Offset:
S piston ring end gaps
a Top ring
b Lower oil ring rail
c Upper oil ring rail
d 2nd ring
A Intake side
4. Lubricate:
S piston
S piston rings
S cylinder
(with the recommended lubricant)
Recommended lubricant
Engine oil
5. Lubricate:
S bolt threads
S nut seats
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide grease
ENG