Yamaha Motor PHAZER Venture PZ50X Supplément Au Manuel D'atelier page 91

Model
Valves, valve seats, valve guides:
Valve clearance (cold)
Intake
Exhaust
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
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 seat width
Intake
<Limit>
Exhaust
<Limit>
MAINTENANCE SPECIFICATIONS
PZ50/PZ50GT/PZ50RT/PZ50MT/PZ50VT/PZ50MP
0.11 ~ 0.20 mm (0.0043 ~ 0.0079 in)
0.21 ~ 0.25 mm (0.0083 ~ 0.0098 in)
23.4 ~ 23.6 mm (0.9213 ~ 0.9291 in)
24.9 ~ 25.1 mm (0.9803 ~ 0.9882 in)
A
1.76 ~ 2.90 mm (0.0693 ~ 0.1142 in)
B
1.76 ~ 2.90 mm (0.0693 ~ 0.1142 in)
0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)
C
0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)
0.5 ~ 0.9 mm (0.0197 ~ 0.0354 in)
0.5 ~ 0.9 mm (0.0197 ~ 0.0354 in)
D
3.975 ~ 3.990 mm (0.1565 ~ 0.1571 in)
3.945 mm (0.1553 in)
3.960 ~ 3.975 mm (0.1559 ~ 0.1565 in)
3.930 mm (0.1547 in)
4.000 ~ 4.012 mm (0.1575 ~ 0.1580 in)
4.050 mm (0.1594 in)
4.000 ~ 4.012 mm (0.1575 ~ 0.1580 in)
4.050 mm (0.1594 in)
0.010 ~ 0.037 mm (0.0004 ~ 0.0015 in)
0.08 mm (0.0031 in)
0.025 ~ 0.052 mm (0.0010 ~ 0.0020 in)
0.10 mm (0.0039 in)
0.01 mm (0.0004 in)
0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)
1.6 mm (0.0630 in)
0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)
1.6 mm (0.0630 in)
41
SPEC