Yamaha YX600S Service Manual page 87

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INSPECTION AND REPAIR
ENG
1 . . 1
Piston Ring Oversize
•Top and 2nd piston ring
Oversize top and middle ring sizes are
stamped on top of ring.
Oversize 2 50
Oversize 4
100
•Oil control ring
Expander spacer of bottom ring (oil control
ring) is color-coded to identify sizes.
Size
Oversize 2
Oversize 4
Piston Pin
1. Lubricate:
•Piston pin (Lightly)
2. Install:
•Piston pin
Color
Blue
Yellow
(into small end of connecting rod)
3. Check:
•Free play
Free play-+ Inspect connecting rod for wear.
Wear-+ Replace connecting rod and piston
pin.
4. Position:
•Piston pin
(into piston)
5. Check:
•Free play
(into piston)
Free play-+ Replace piston pin and/or piston.
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