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ENG
CONNECTING RODS AND PISTONS
e. Calculate the piston-to-cylinder clear-
ance with the following formula.
f. If out of specification, replace the
crankcases, and the pistons and pis-
ton rings as a set.
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Piston-to-cylinder clearance =
Cylinder bore “C” –
Piston skirt diameter “P”
Piston-to-cylinder clearance
0.028 ~ 0.054 mm
(0.0011 ~ 0.0021 in)
<Limit>: 0.1 mm (0.004 in)
EB404410
CHECKING THE PISTON RINGS
1. Measure:
• piston ring side clearance
Out of specification
→
Replace the pis-
ton and piston rings as a set.
NOTE:
Before measuring the piston ring side
clearance, eliminate any carbon depos-
its from the piston ring grooves and pis-
ton rings.
Piston ring side clearance
Top ring
0.03 ~ 0.07 mm
(0.0012 ~ 0.0028 in)
<Limit>: 0.12 mm (0.0047 in)
2nd ring
0.02 ~ 0.06 mm
(0.0008 ~ 0.0024 in)
<Limit>: 0.12 mm (0.0047 in)
2. Install:
• piston ring
(into the cylinder)
NOTE:
Level the piston ring in the cylinder with
the piston crown.
a
5 mm (0.20 in)
Содержание YZF-R7
Страница 1: ...5FL 28199 E0 YZF R7 OWNER S SERVICE MANUAL ...
Страница 8: ......
Страница 58: ...2 20 SPEC Crankcase tightening sequence TIGHTENING TORQUES ...
Страница 72: ...3 3 CHK ADJ ...
Страница 127: ...3 58 CHK ADJ CHECKING AND CHARGING THE BATTERY Charging method using a variable voltage charger ...
Страница 128: ...3 59 CHK ADJ CHECKING AND CHARGING THE BATTERY Charging method using a constant voltage charger ...
Страница 363: ...8 27 ELEC ...
Страница 380: ......
Страница 381: ...PRINTED IN JAPAN 98 12 0 5 1 CR PRINTED ON RECYCLED PAPER YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...