Yamaha YZF-R1S, Service Manual

Page: 35 / 457

2-7
ENGINE SPECIFICATIONS
SPEC
Item Standard Limit
Piston
Piston-to-cylinder clearance
Diameter D
Height H
Piston pin bore (in the piston)
Diameter
Offset
Offset direction
Piston pins
Outside diameter
Piston-pin-to-piston-pin-bore
clearance
Piston rings
Top ring
Ring type
Dimensions (B
T)
End gap (installed)
Ring side clearance
2nd ring
Ring type
Dimensions (B
T)
End gap (installed)
Ring side clearance
Oil ring
Dimensions (B T)
End gap (installed)
0.010
X
0.035 mm (0.0004
X
0.0014 in)
76.975
X
76.990 mm (3.0305
X
3.0311 in)
5 mm (0.20 in)
17.002
X
17.013 mm
(0.6694
X
0.6698 in)
0.5 mm (0.0197 in)
Intake side
16.991
X
17.000 mm
(0.6689
X
0.6693 in)
0.002
X
0.022 mm (0.0001
X
0.0009 in)
Barrel
0.90
2.75 mm (0.04 0.11 in)
0.15
X
0.25 mm (0.0059
X
0.0098 in)
0.030
X
0.065 mm (0.0012
X
0.0026 in)
Taper
0.80
2.75 mm (0.03 0.11 in)
0.30
X
0.45 mm (0.0118
X
0.0177 in)
0.020
X
0.055 mm (0.0008
X
0.0022 in)
1.50 2.25 mm (0.06 0.09 in)
0.10
X
0.40 mm (0.0039
X
0.0158 in)
0.120 mm
(0.0047 in)
SSS
SSS
17.043 mm
(0.6710 in)
SSS
SSS
16.971 mm
(0.6682 in)
0.072 mm
(0.0028 in)
SSS
SSS
0.50 mm
(0.0197 in)
0.115 mm
(0.0045 in)
SSS
SSS
0.80 mm
(0.0315 in)
0.115 mm
(0.0045 in)
SSS
SSS