Checking The Piston Pin; Assembly Piston And Cylinder - Yamaha FZ-16 Service Manual

3.
Measure:
•
Distance between centers of rings
Out of specification Replace
piston rings.
NOTE:
The opening of the oil ring spacer
can not be measured. In case the opening
oil ring is excessive, replace
three segments as a whole.
Piston ring
Top Ring
Distance between centers of ring
(Installed)
0.10 to 0.25 mm
Limit
0.40 mm
Second ring
Distance between centers of ring
(Installed)
0.10 to 0.25 mm
Limit
0.40 mm
Oil ring
Distance between centers of ring
(Installed)
0.20 to 0.70 mm

CHECKING THE PISTON PIN

1.
Check:
•
Piston pin
Blue discoloration / grooves Replace
piston pin and then check the system
Lubrication
2.
Measure:
•
Outside diameter of piston pin "a"
Out of specification Replace
piston pin
Pin Outside Diameter
piston
14995-15000 mm
Limit
14,975 mm
3.
Measure:
•
Inner diameter of the pin
Piston "a"
Out of specification Replace the piston
Inner diameter of
piston pin
15002-15013
Limit
15,043 mm
4.
Calculate:
•
Clearance piston pin - bore
the piston pin hole
EspecificaciónReemplace outside the
piston rod and piston as a whole.
•
Clearance piston pin - bore
the piston pin hole diameter =
inside the piston pin hole "b" -
Outside diameter of piston pin "a"

ASSEMBLY PISTON AND CYLINDER

1.
Install:
•
Top Ring "1"
•
Second ring "2"
•
Oil ring expansion "3"
•
Lower guide ring oil "4"
•
Oil ring upper guide "5"
NOTE:
Be sure to install the piston rings
so that makes the manufacturer or numbers
are up.
5-24
CYLINDER AND PISTON