ENG
4-29
3. Measure:
• Valve spring tilt
Out of specification
→
Replace the valve
spring.
INSTALLING THE VALVES
The following procedure applies to all of the
valves and related components.
1. Deburr:
• Valve stem end
(with an oil stone)
2. Lubricate:
• Valve stem
• Valve stem seal
(with the recommended lubricant)
3. Install:
• Valve spring seat
• Valve stem seal
• Valve
• Inner valve spring
• Outer valve spring
• Upper spring seat
(into the cylinder head)
NOTE:
NOTE:
Install the valve springs with the larger pitch
facing up.
Larger pitch
Smaller pitch
Inner spring
Spring tilt (intake)
2.5°/1.60 mm (2.5°/0.063 in)
Spring tilt (exhaust)
2.5°/1.60 mm (2.5°/0.063 in)
Outer spring
Spring tilt (intake)
2.5°/1.60 mm (2.5°/0.063 in)
Spring tilt (exhaust)
2.5°/1.60 mm (2.5°/0.063 in)
Recommended lubricant
Molybdenum disulfide oil
VALVES AND VALVE SPRINGS
Содержание 2008 Raptor 250
Страница 1: ...SERVICE MANUAL YFM250RX 4D3 28197 10 LIT 11616 21 22 2008 ...
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Страница 47: ...SPEC 2 24 Oil cooler Oil hose 1 Oil hose 2 OIL FLOW DIAGRAMS ...
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Страница 310: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...