If there are obstructions to air flow, remove them.
If the corrugated fins [A] are deformed, carefully straighten them.
If the air passages of the radiator core are blocked more than 20% by unremovable obstructions or irreparably deformed fins, replace the radiator with a new one.

NOTICE
When cleaning the radiator with steam cleaner, be careful of the following to prevent radiator damage: Keep the steam gun [A] away more than 0.5 m (1.6 ft) [B] from the radiator core.
Hold the steam gun perpendicular [C] (not oblique [D]) to the core surface.
Run the steam gun, following the core fin direction.

Radiator and Radiator Fan Installation
Radiator Cap InspectionCam Wear Inspection
Remove the camshafts (see Camshaft Removal).
Measure the height [A] of each cam with a micrometer.
If the cams are worn down past the service limit, replace
the camshaft.
Cam Height
Standard:
Exhaust 35.043 35.157 mm
(1.3796 1.3841 in.)
Intake 38.243 38.357 mm
(1.5056 1.5101 in. ...
Brake Pedal Position Adjustment
NOTE
Usually it is not necessary to adjust the pedal position,
but always adjust it when push rod locknut has been
loosened.
Loosen the locknut [A] and turn the push rod with the hex
head [B] to achieve the correct pedal position.
If the length [C] shown is 69 ±1 mm (2.7 ±0.04 in.), th ...
Air Intake Duct Assembly (Other than US, CA and CAL Models)
Install the seals [A] as shown in the figure.
Fit the projections [A] of the air intake valve to the hole [B]
of the air intake ducts.
Tighten:
Torque - Air Intake Duct Assembly Screws: 1.5 N·m (0.15
kgf·m, 13 in·lb)
Hang the shaft [A] to the air intake valve securely ...