Checking The Piston Pins - Yamaha XV1700P Service Manual

CYLINDERS AND PISTONS
2. Install:
• piston ring
(into the cylinder)
NOTE:
_
Level the piston ring into the cylinder with the
piston crown.
a 10 mm (0.39 in)
3. Measure:
• piston ring end gap
Out of specification → Replace the piston
ring.
NOTE:
_
The oil ring expander spacer's end gap cannot
be measured. If the oil ring rail's gap is exces-
sive, replace all three piston rings.
Piston ring end gap
EAS00266

CHECKING THE PISTON PINS

The following procedure applies to all of the
piston pins.
1. Check:
• piston pin
Blue discoloration/grooves → Replace the
piston pin and then check the lubrication
system.
2. Measure:
• piston pin outside diameter a
Out of specification → Replace the piston
pin.
Piston pin outside diameter
5 - 53
ENG
Top ring
0.30 ~ 0.45 mm
(0.012 ~ 0.018 in)
<Limit>: 0.65 mm (0.026 in)
2nd ring
0.30 ~ 0.45 mm
(0.012 ~ 0.018 in)
<Limit>: 0.80 mm (0.031 in)
Oil ring
0.2 ~ 0.7 mm
(0.008 ~ 0.028 in)
21.991 ~ 22.000 mm
(0.8658 ~ 0.8661 in)
<Limit>: 21.971 mm (0.8650 in)