Installing The Pistons And Cylinders - Yamaha STAR XVS95CE 2DX1 2014 Service Manual

EAS24460
INSTALLING THE PISTONS AND
CYLINDERS
The following procedure applies to all of the pis-
tons and cylinders.
1. Install:
• Top ring "1"
• 2nd ring "2"
• Oil ring expander "3"
• Lower oil ring rail "4"
• Upper oil ring rail "5"
TIP
Be sure to install the piston rings so that the
manufacturer's marks or numbers face up.
2. Install:
• Piston "1"
• Piston pin "2"
New
• Circlips "3"
TIP
• Apply engine oil onto the piston pin.
• Make sure the arrow mark "a" on the piston fac-
es towards the front side of the cylinder.
• Before installing the circlips, cover the crank-
case opening with a clean rag to prevent the
clips from falling into the crankcase.
• Install the circlips so that the clip ends are 3
mm (0.12 in) "b" or more from the cutout in the
piston.
• Reinstall each piston into its original cylinder.
CYLINDERS AND PISTONS
3. Lubricate:
• Piston
• Piston rings
• Cylinder
(with the recommended lubricant)
Recommended lubricant
Engine oil
4. Offset:
• Piston ring end gaps
a. Top ring
b. Upper oil ring rail
c. Oil ring expander
d. Lower oil ring rail
e. 2nd ring
A. forward
5. Install:
• Rear cylinder gasket "1"
• Front cylinder gasket "2"
A. Intake side
B. Exhaust side
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