NOTE
Valve clearance must be checked and adjusted when the engine is cold (at room temperature).
TDC Mark [A] for #1, 4 Pistons Timing Mark [B] (Crankcase Halves Mating Surface)

Valve Clearance
Standard:
Exhaust 0.17
0.22 mm (0.0067
0.0087 in.)
Intake 0.15
0.22 mm (0.0059
0.0087 in.)

NOTE
Thickness gauge is horizontally inserted on the valve lifter.
Appropriateness [A] Inadequacy [B] Thickness Gauge [C] Horizontally Inserts [D] Cam [E] Valve Lifter [F] Hits the Valve Lifter Ahead [G]

When positioning #1 piston TDC at the end of the compression stroke:
Intake Valve Clearance of #1 and #3 Cylinders Exhaust Valve Clearance of #1 and #2 Cylinders Measuring Valve [A]

When positioning #4 piston TDC at the end of the compression stroke:
Intake Valve Clearance of #2 and #4 Cylinders Exhaust Valve Clearance of #3 and #4 Cylinders Measuring Valve [A]

If the valve clearance is not within the specified range, first record the clearance, and then adjust it.
Engine Top End
Valve Clearance AdjustmentCanister Inspection
Refer to the Evaporative Emission Control System Inspection
(CAL and SEA-B1 Models) in the Periodic Maintenance
chapter.
1. Green Hoses (Purge)
2. Fittings
3. Canister
4. White Hose (Vacuum)
5. Throttle Body Assy
6. Fuel Tank
7.Red Hose (Return)
8. Blue Hose (Breather)
9. Brack ...
Inner Tube Inspection
Visually inspect the inner tube [A].
If there is any damage, replace the inner tube. Since
damage to the inner tube damages the oil seal, replace
the oil seal whenever the inner tube is replaced.
NOTICE
If the inner tube is badly bent or creased, replace
it. Excessive bending, followed by ...
Premuffler Chamber Installation
Replace the premuffler chamber gasket [A] with a new
one.
Install the premuffler chamber gasket to the premuffler
chamber [B] until it is bottomed so that the chamfer side
faces exhaust pipe [C].
Install the exhaust pipe clamp [D] as shown in the figure.
Insert the projection [E] into ...