Yamaha VX600ERG, Руководство по обслуживанию

Страница: 164 / 287

5-12
ENG
CYLINDER HEAD AND CYLINDER
10. Install:
•
Piston ring
(into the cylinder)
Push in the ring with the piston crown.
NOTE:
Insert the ring into the cylinder, and push it approxi-
mately 20 mm (0.8 in) into the cylinder. Push in the
ring with the piston crown so that the ring is at right
angles to the cylinder bore.
11. Measure:
•
End gap (piston rings)
Use the thickness gauge
1
.
Out of specification
→
Replace the rings as a
set.
End gap (top):
0.35 ~ 0.55 mm
(0.014 ~ 0.022 in)
End gap (2nd):
0.35 ~ 0.55 mm
(0.014 ~ 0.022 in)
a
20 mm (0.8 in)
12. Measure:
•
Outside diameter (piston pin)
a
Out of specification
→
Replace the piston pin.
Outside diameter (piston pin):
19.995 ~ 20.000 mm
(0.7872 ~ 0.7874 in)
13. Measure:
•
Piston pin-to-piston clearance
Out of specification
→
Replace the piston.
Piston pin-to-piston clearance =
Bore size (piston pin)
b
–
Outside diameter (piston pin)
a
Piston pin-to-piston clearance =
0.009 ~ 0.015 mm
(0.000354 ~ 0.000591 in)
SEA5220
SEA5230
SEA5240
SEA5250