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1.Measure the valve clearance as follows.

(1)Turn the crankshaft clockwise so that the No.1 piston is at TDC of the compression stroke.

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

• If the valve clearance exceeds the standard, replace the tappet. (See VALVE CLEARANCE ADJUSTMENT.)

Note

• Make sure to note the measured values for choosing the suitable replacement tappets.

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Standard valve clearance [when cold]

IN: 0.22—0.28 mm {0.009—0.011 in}

EX: 0.27—0.33 mm {0.011—0.012 in}

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

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

• If the valve clearance exceeds the standard, replace the tappet. (See VALVE CLEARANCE ADJUSTMENT.)

Note

• Make sure to note the measured values for choosing the suitable replacement tappets.

Standard valve clearance [when cold]

IN: 0.22—0.28 mm {0.009—0.011 in}

EX: 0.27—0.33 mm {0.011—0.012 in}