5-27
POWR
E
VALVES
SERVICE POINTS
Valve inspection
1. Inspect:
●
Valve
Damage/warpage
→
Replace.
2. Measure:
●
Margin thickness
a
Out of specification
→
Replace.
Margin thickness:
IN: 0.45 ~ 0.65 mm
(0.018 ~ 0.026 in)
EX: 0.65 ~ 0.85 mm
(0.026 ~ 0.033 in)
a
3. Measure:
●
Valve stem diameter
a
Out of specification
→
Replace.
Valve stem diameter:
IN: 5.975 ~ 5.990 mm
(0.235 ~ 0.236 in)
EX: 5.960 ~ 5.975 mm
(0.2346 ~ 0.2352 in)
a
4. Measure:
●
Valve stem runout
Out of specification
→
Replace.
NOTE:
The valve guide, valve seal, and valve
should be replaced as a set.
Valve stem runout limit:
IN and EX: 0.03 mm (0.001 in)
Summary of Contents for F100A
Page 51: ...F D ES SPEC 2 9 DIMENSIONS ABMESSUNGEN DIMENSIONES DIMENSIONS ABMESSUNGEN DIMENSIONES 9 ...
Page 58: ...2 13 SPEC E HOSE ROUTING HOSE ROUTING 2 1 3 1 Water hose 2 Blow by gas hose 3 Oil return hose ...
Page 394: ...8 4 ELEC E ELECTRICAL COMPONENTS Rear view 1 2 1 Spark plug 2 Spark plug lead ...
Page 462: ......
Page 463: ...Printed on recycled paper Printed in Japan Oct 2000 0 2 1 CR F100AET YAMAHA MOTOR CO LTD ...