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11.10
Section 11
Reassembly
Figure 11-34. Intake Valve Seal Location.
Assemble Cylinder Heads
Prior to installation, lubricate all components with
engine oil, paying particular attention to the lip of the
valve stem seal, valve stems, and valve guides. Install
the following items in the order listed below using a
valve spring compressor. See Figures 11-35 and 11-36.
• Intake and exhaust valves
• Valve spring caps
• Valve springs
• Valve spring retainers
• Valve spring keepers
Figure 11-35. Valve Components.
Figure 11-33. Installed Breather Reed.
Valve Stem Seals
These engines use valve stem seals on the intake
valves and occasionally on the exhaust valves. Use a
new seal whenever the valve is removed or if the seal
is deteriorated or damaged in any way. Never reuse an
old seal. See Figure 11-34.
Figure 11-32. Match Numbers on Cylinder Barrel
and Head.
4. If the breather reeds and stops were removed
from the crankcase, reinstall them at this time
and secure with the hex flange screw. Torque the
screw to 4.0 N·m (35 in. lb.). See Figure 11-33.
Valve
Keepers
Retainer
Cap
Spring
Intake Valve Seal