VALVE CLEARANCE ADJUSTMENT [WLT-1, WLT-2, WL-3]
id011097503600
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Caution
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• Loosening the locknut and the adjust screw while the cam lobe is not pressing down the rocker arm will damage the claw of the rocker arm. When loosening the locknut and the adjust screw, rotate the crankshaft clockwise and be sure that the cam lobe presses down the rocker arm firmly as shown in the figure.
1. Remove the cylinder head cover.
2. Turn the crankshaft and align the timing mark so that the piston of the No. 1 or No. 4 cylinders is at TDC of the compression.
3. Adjust the valve clearances A with the No.1 cylinder at TDC of compression, and those of B with the No.4 cylinder at TDC of compression.
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Valve clearance
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IN: 0.05 — 0.15 mm {0.0020 — 0.0059 in}
[Engine cold]
0.15 mm {0.0059 in}
[Engine hot (reference)]
EX: 0.15 —0.25 mm {0.0060 — 0.0098 in}
[Engine cold]
0.25 mm {0.0098 in}
[Engine hot (reference)]
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Tightening torque (locknut)
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16—20 N·m {1.7—2.0 kgf·m, 12—14 ft·lbf}
4. Turn the crankshaft one full turn and adjust the remaining valve clearances.
