Installing The Valves - Yamaha MT-01 T 2005 Service Manual

Inner spring
Installed compression spring
force (intake)
63.00–73.00 N (14.16–16.41 lb)
(6.42–7.44 kgf)
Installed compression spring
force (exhaust)
63.00–73.00 N (14.16–16.41 lb)
(6.42–7.44 kgf)
Installed length (intake)
29.00 mm (1.14 in)
Installed length (exhaust)
29.00 mm (1.14 in)
Outer spring
Installed compression spring
force (intake)
139.00–161.00 N (31.25–36.19 lb)
(14.17–16.42 kgf)
Installed compression spring
force (exhaust)
139.00–161.00 N (31.25–36.19 lb)
(14.17–16.42 kgf)
Installed length (intake)
31.00 mm (1.22 in)
Installed length (exhaust)
31.00 mm (1.22 in)
b. Installed length
3. Measure:
• Valve spring tilt "a"
Out of specification → Replace the valve
spring.
Inner spring
Spring tilt (intake)
2.5°/1.7 mm (2.5°/0.067 in)
Spring tilt (exhaust)
2.5°/1.7 mm (2.5°/0.067 in)
Outer spring
Spring tilt (intake)
2.5°/1.9 mm (2.5°/0.075 in)
Spring tilt (exhaust)
2.5°/1.9 mm (2.5°/0.075 in)
VALVES AND VALVE SPRINGS
EAS24340

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 "1"
• Valve stem seal "2"
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide oil
3. Install:
• Valve guide "1"
• Lower spring seat "2"
• Valve stem seal "3"
• Valve "4"
• Inner valve spring "5"
• Outer valve spring "6"
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