Engine Top End
Valve Clearance Inspection
Valve clearance must be checked and adjusted when
the engine is cold (at room temperature).
Lower Fairings (see Lower Fairing Removal in the Frame
Crankshaft Sensor Cover (see Crankshaft Sensor Re-
moval in the Electrical System chapter)
Cylinder Head Cover (see Cylinder Head Cover Re-
moval in the Engine Top End chapter)
Position the crankshaft at #1, 4 piston TDC.
TDC Mark [A] for #1, 4 Pistons
Timing Mark [B] (Crankcase Halves Mating Surface)
Using a thickness gauge [A], measure the valve clearance
between the cam and the valve lifter.
Exhaust 0.22 ∼ 0.31 mm (0.0087 ∼ 0.0122 in.)
0.11 ∼ 0.19 mm (0.0043 ∼ 0.0075 in.)
Thickness gauge is horizontally inserted on the valve
Thickness Gauge [C]
Horizontally Inserts [D]
Valve Lifter [F]
Hits the Valve Lifter Ahead [G]
PERIODIC MAINTENANCE 2-25