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 AdjustmentBattery Installation
Visually inspect the surface of the battery container.
If any signs of cracking or electrolyte leakage from the
sides of the battery.
Put the battery into the rear fender
Install the band [A].
Connect the positive (+) cable [B] (red cap) to the positive
(+) terminal first, and then ...
Stick Coil Inspection
Remove the stick coils (see Stick Coil Removal).
Measure the primary winding resistance [A] as follows.
Connect the hand tester between the coil terminals.
Set the tester to the × 1 Ω range, and read the tester.
Measure the secondary winding resistance [B] as follows.
Conn ...
Camshaft, Camshaft Cap Wear Inspection
Remove the camshaft caps (see Camshaft Removal).
Cut the strips of plastigage (press gauge) to journal width.
Place a strip on each journal parallel to the camshaft installed
in the correct position.
Tighten the camshaft cap bolts and upper camshaft chain
guide bolts to the specified ...