VALVE CLEARANCE INSPECTION [MZR-CD 2.2]

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1.  Remove the cylinder head cover. (See CYLINDER HEAD DISASSEMBLY (I) [MZR-CD 2.2].)

2.  Measure the valve clearance using the following procedure.

Caution

•  Apply engine oil to the cam after measuring the valve clearance.

(1)  Rotate the crankshaft clockwise and align the knock pin to the position shown in the figure. In this position, the No.1 cylinder is at the TDC of the compression stroke.

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(2)  Measure the valve clearance at A in the figure.

•  If the valve clearance is out of the standard value, adjust it. (See VALVE CLEARANCE ADJUSTMENT [MZR-CD 2.2].)

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Standard valve clearance [Engine cold]

IN : 0.07—0.17 mm {0.003—0.006 in}

EX : 0.12—0.22 mm {0.0048—0.0086 in}

(3)  Turn the crankshaft 360° clockwise so that the No.4 cylinder is at TDC of the compression stroke.

(4)  Measure the valve clearance at B in the figure.

•  If the valve clearance is out of the standard value, adjust it. (See VALVE CLEARANCE ADJUSTMENT [MZR-CD 2.2].)

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Standard valve clearance [Engine cold]

IN : 0.07—0.17 mm {0.003—0.006 in}

EX : 0.12—0.22 mm {0.0048—0.0086 in}