Yamaha YZF-R1 98 Service Manual page 27

Item
Pistons
Piston-to-cylinder clearance
Diam eter D
D
Height H
Piston pin bore (in the piston)
Diam eter
Offset
Offset direction
Piston pins
Outside diam eter
Piston-pin-to-piston-pin-bore
clearance
Piston rings
Top ring
Ring type
Dim ensions (B × T)
End gap (installed)
Ring side clearance
2nd ring
Ring type
Dim ensions (B × T)
End gap (installed)
Ring side clearance
Oil ring
Dim ensions (B × T)
End gap (installed)
ENGINE SPECIFICATIONS
0.03 ~ 0.055 m m
73.955 ~ 73.970 m m
H
5 m m
17.002 ~ 17.013 m m
0.5 m m
Intake side
16.991 ~ 17.000 m m
0.002 ~ 0.022 m m
B
T
Barrel
0.90 × 2.75 m m
0.19 ~ 0.31 m m
0.030 ~ 0.065 m m
B
T
Taper
0.8 × 2.8 m m
0.30 ~ 0.45 m m
0.020 ~ 0.055 m m
B
T
1.5 × 2.6 m m
0.10 ~ 0.35 m m
2 - 7
Standard
SPEC
Lim it
0.12 m m
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0.072 m m
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