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9. CYLINDER HEAD/VALVES MYROAD 700i
Measure compressed force (valve spring) and
installed length.
Replace if out of specification.
Standard:
Inner: 2.9 kg/32 mm
Outer: 12.4 kg/35 mm
Measure the spring tilt.
Replace if out of specification.
Standard:
Inner: 1.2 mm
Outer: 1.2 mm
ASSEMBLY
Install the valve spring seats and oil seal.
Be sure to install new oil seal. (2)
Install the seat valve spring.
Install the new stem seals (1)
Lubricate each valve with engine oil or
molybdenum disulfide oil and insert the
valves into the valve guides.
To avoid damage the stem seal, turn the valve
slowly when inserting. Valve Spring Compressor
Install the valve springs and retainers.
Install the valve cotters using the special tools
as shown.
· When assembling, a valve spring
compressor must be used.
· Install the cotters with the pointed ends
facing down from the upper side of the
cylinder head.
Special tool:
Valve Spring Compressor A120E00040
9-14