Yamaha VMX12 2001 Service Manual page 32

Item
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)
Connecting rods
Crankshaft-pin-to-big-end-bearing
clearance
Bearing color code
Crankshaft
D
A
B
Width A
Width B
Max. runout C
Big end side clearance D
Big end radial clearance
Crankshaft-journal-to-crankshaft-
journal-bearing clearance
Bearing color code
ENGINE SPECIFICATIONS
B
T
Barrel
1.0 × 3.1 mm
0.35 ~ 0.50 mm
0.03 ~ 0.07 mm
B
T
Taper
1.2 × 3.1 mm
0.35 ~ 0.50 mm
0.02 ~ 0.06 mm
B
T
2.5 × 3.1 mm
0.2 ~ 0.8 mm
0.021 ~ 0.039 mm
1 = Blue 2 = Black 3 = Brown 4 = Green
5 = Yellow 6 = Pink
C
83.92 ~ 83.97 mm
242.72 ~ 243.17 mm
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0.320 ~ 0.924 mm
0.021 ~ 0.045 mm
0.040 ~ 0.058 mm
1 = Blue 2 = Black 3 = Brown 4 = Green
5 = Yellow 6 = Pink 7 = Red
Standard
2 - 8
SPEC
Limit
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0.75 mm
0.12 mm
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0.75 mm
0.12 mm
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0.03 mm
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0.1 mm
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