Yamaha MBK X-MAX 300 2017 Service Manual page 231

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• When installing a piston pin clip, make sure
that the clip ends "b" are positioned away from
the cutout "c" in the piston as shown in the illus-
tration.
3
New
3
1
3. Lubricate:
• Piston
• Piston rings
• Cylinder
(with the recommended lubricant)
Recommended lubricant
Engine oil
4. Offset:
• Piston ring end gaps
45°
d
45°
135°
a
c
a. Top ring
b. 2nd ring
c. Upper oil ring rail
d. Oil ring expander
e. Lower oil ring rail
A. Exhaust side
2
1
a
New
2
b
c
A
45°
e
45°
b
CYLINDER AND PISTON
5. Install:
• Dowel pins
• Cylinder gasket
• Cylinder "1"
TIP
• While holding the piston "2" with one hand, in-
stall the cylinder with the other hand.
• Pass the timing chain and timing chain guide
(intake side) through the timing chain cavity.
5-36
New
2
1

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