Yamaha RX10LTGTYL Service Manual page 910

Model
Valve dimensions:
Valve head diameter A
Intake
Exhaust
Valve face width B
Intake
Exhaust
Valve seat width C
Intake
Exhaust
Valve margin thickness D
Intake
Exhaust
Margin Thickness
Valve stem diameter
Intake
<Limit>
Exhaust
<Limit>
Valve guide inside diameter
Intake
<Limit>
Exhaust
<Limit>
Valve-stem-to-valve-guide
clearance
Intake
<Limit>
Exhaust
<Limit>
Valve stem runout limit
Valve seal width
Intake
Exhaust
MAINTENANCE SPECIFICATIONS
22.9 X 23.1 mm (0.9016 X 0.9094 in)
24.4 X 24.6 mm (0.9606 X 0.9685 in)
Head Diameter
1.76 X 2.90 mm (0.0693 X 0.1142 in)
1.76 X 2.90 mm (0.0693 X 0.1142 in)
Face Width
0.9 X 1.1 mm (0.035 X 0.043 in)
0.9 X 1.1 mm (0.035 X 0.043 in)
Seat Width
0.5 X 0.9 mm (0.020 X 0.035 in)
0.5 X 0.9 mm (0.020 X 0.035 in)
3.975 X 3.900 mm (0.1565 X 0.1535 in)
3.945 mm (0.1553 in)
4.460 X 4.475 mm (0.1756 X 0.1762 in)
4.43 mm (0.1744 in)
4.000 X 4.012 mm (0.1575 X 0.1580 in)
4.05 mm (0.1594 in)
4.500 X 4.512 mm (0.1772 X 0.1776 in)
4.55 mm (0.1791 in)
0.010 X 0.037 mm(0.0004 X 0.0015 in)
0.08 mm (0.0031 in)
0.025 X 0.052 mm (0.0010 X 0.0020 in)
0.10 mm (0.0039 in)
0.01 mm (0.0004 in)
0.9 X 1.1 mm (0.035 X 0.043 in)
0.9 X 1.1 mm (0.035 X 0.043 in)
RXW10J, RXW10SJ
43
SPEC