PERIODIC MAINTENANCE 2-23
Maintenance Procedure
•
Remove the cylinder head cover (see Cylinder Head
Cover Removal in the Engine Top End chapter).
•
Remove the timing inspection cap [A] and starter clutch
bolt cap [B] on the starter clutch cover [C].
•
Using a wrench on the starter clutch bolt [A], turn the
crankshaft clockwise until the line [B] (TDC mark for #1,4
pistons) on the starter clutch is aligned with the notch [C]
in the edge of the timing inspection hole [D] in the crank-
shaft sensor cover.
•
Using a thickness gauge [A], measure the valve clearance
between the cam and the valve lifter.
Valve Clearance
Standard:
Exhaust
0.17 ∼ 0.22 mm (0.0067 ∼ 0.0087 in.)
Inlet
0.15 ∼ 0.24 mm (0.0059 ∼ 0.0094 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]
