Yamaha VX700ERC, Руководство по обслуживанию

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–35–
C
CYLINDER HEAD AND CYLINDER
ENG
NOTE:
CYLINDER HEAD AND CYLINDER
INSPECTION
1. Measure:
S
Piston-to-cylinder clearance
Measurement steps:
1st step:
S
Measure the cylinder bore “C” with a
cylinder bore gauge
1 .
Measure the cylinder bore “C” parallel to,
and at right angles to the crankshaft. Then
find the average of the measurements.
Standard Wear limit
Cylinder bore
“C”
500:
68.00
X
68.02 mm
(2.677
X
2.678 in)
700:
70.50
X
70.52 mm
(2.775
X
2.776 in)
68.1 mm
(2.681 in)
70.6 mm
(2.780 in)
Taper “T” –
0.05 mm
(0.0019 in)
Out of round
“R”
–
0.01 mm
(0.0004 in)
C = Maximum D
T = (Maximum D
1
or D
2
) –
(Maximum D
5
or D
6
)
R = (Maximum D
1
, D
3
or D
5
) –
(Minimum D
2
, D
4
or D
6
)
S
If out of specification, replace cylinder,
and replace piston and piston rings as a
set.