Yamaha YZF-R6 Service Manual page 31

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Item
Timing chain
Model/number of links
Tensioning system
Valves, valve seats, valve guides
Valve clearance (cold)
Intake
Exhaust
Valve dimensions
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 clearance
Intake
Exhaust
Valve stem runout
Valve seat width
Intake
Exhaust
ENGINE SPECIFICATIONS
RH2015/120
Automatic
0.11 X 0.20 mm
0.21 X 0.30 mm
Face Width
24.9 X 25.1 mm
21.9 X 22.1 mm
1.14 X 1.98 mm
1.14 X 1.98 mm
0.9 X 1.1 mm
0.9 X 1.1 mm
0.6 X 0.8 mm
0.6 X 0.8 mm
3.975 X 3.990 mm
3.960 X 3.975 mm
4.000 X 4.012 mm
4.000 X 4.012 mm
0.010 X 0.037 mm
0.025 X 0.052 mm
SSS
0.9 X 1.1 mm
0.9 X 1.1 mm
2-5
Standard
Seat Width
SPEC
Limit
SSS
SSS
SSS
SSS
Margin Thickness
SSS
SSS
SSS
SSS
1.6 mm
1.6 mm
0.5 mm
0.5 mm
3.950 mm
3.935 mm
4.042 mm
4.042 mm
0.08 mm
0.1 mm
0.04 mm
1.6 mm
1.6 mm

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1999 yzf-r6

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