Yamaha VMX12 2001 Service Manual page 29

Item
Timing chain
Model/number of links
Tensioning system
Valves, valve seats, valve guides
Valve clearance (cold)
Intake
Exhaust
Valve dimensions
A
Head Diameter
Valve head diameter A
Intake
Exhaust
Valve face width B
Intake
Exhaust
Valve seat width C
Intake
Exhaust
Valve margin thickness D
Intake
Exhaust
Valve stem diameter
Intake
Exhaust
Valve guide inside diameter
Intake
Exhaust
Valve-stem-to-valve-guide clear-
ance
Intake
Exhaust
Valve stem runout
Valve seat width
Intake
Exhaust
ENGINE SPECIFICATIONS
219FTS/117
Automatic
0.11 ~ 0.15 mm
0.26 ~ 0.30 mm
B
Face Width
30.4 ~ 30.6 mm
24.9 ~ 25.1 mm
1.6 ~ 3.1 mm
1.3 ~ 2.4 mm
0.9 ~ 1.1 mm
0.9 ~ 1.1 mm
1.1 ~ 1.5 mm
1.1 ~ 1.5 mm
5.475 ~ 5.490 mm
5.460 ~ 5.475 mm
5.500 ~ 5.512 mm
5.500 ~ 5.512 mm
0.010 ~ 0.037 mm
0.025 ~ 0.052 mm
----
0.9 ~ 1.1 mm
0.9 ~ 1.1 mm
2 - 5
Standard
C
Seat Width
SPEC
Limit
----
----
----
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D
Margin Thickness
----
----
----
----
1.4 mm
1.4 mm
0.7 mm
0.7 mm
5.445 mm
5.42 mm
5.55 mm
5.55 mm
0.08 mm
0.1 mm
0.01 mm
1.4 mm
1.4 mm