Yamaha FX10X 2008 Service Manual page 223

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VALVES AND VALVE SPRINGS
2. Lubricate:
• Valve stem 1
• Valve stem seal 2
(with the recommended lubricant)
3. Install:
• Lower spring seat 1
• Valve stem seal 2
• Valve 3
• Valve spring 4
• Upper spring seat 5
(into the cylinder head)
NOTE:
• Make sure each valve is installed in its original
place.
• Install the valve spring with the larger pitch a fac-
ing up.
b Smaller pitch
4. Install:
• Valve cotters
NOTE:
Install the valve cotters by compressing the valve
spring with the valve spring compressor 1 and
valve spring compressor attachment 2.
5-37
ENG
Recommended lubricant:
Molybdenum disulfide oil
New
Valve spring compressor:
90890-04019, YM-04019
Valve spring compressor attach-
ment:
90890-04114
Valve spring compressor adapter
19.5 mm:
YM-04114

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