Replace it if necessary.

Inner Tube Inspection
Spring Tension InspectionRadiator and Radiator Fan Installation
If the radiator bracket [A] was removed, install it.
Install the radiator fan to the radiator
Tighten the radiator fan mounting bolts.
When installing the pad [B], install it so that the upper end
of the pad aligns with the corner top [C].
When install the pad [D], install it so that the ...
Valve Clearance
Valve and valve seat wear decreases
valve clearance, upsetting valve timing.
NOTICE
If valve clearance is left unadjusted,
wear will eventually
cause the valves to remain
partly open; which lowers performance,
burns the valves and
valve seats, and may cause serious
engine damage.
Valve cle ...
Air Suction System Damage Inspection
Separate the air switching valve hose [A] from the lower
air cleaner housing [B] (see Air Cleaner Housing Removal
in the Fuel System (DFI) chapter).
Connect the following parts temporarily.
Fuel Pump Lead Connector [A]
Extension Tube [B]
Air Cleaner Housing (see Air Cleaner Hou ...