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Engine Model Number.............. Honda, GX 120
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Engine Type.............. 4-cycle, 1-cylinder, 25° incline
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Piston Displacement.............. 7.2 cu in. (118 mm)
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Direction of Rotation of Output Shaft.............. Counterclockwise
viewed from shaft side
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Adjustment Specifications
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Spark Plug Gap.............. 0.7—0.8 mm (0.028—0.031
in.)
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Ignition Coil Air Gap.............. 0.4 ± 0.2 mm (0.016 ±
0.008 in.)
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Intake Valve Clearance (cold).............. 0.15 ± 0.02
mm (0.006 ± 0.001 in.)
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Exhaust Valve Clearance (cold).............. 0.20 ± 0.02
mm (0.008 ± 0.001 in.)
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Engine Speed, Low Idle.............. 1600 ± 100 rpm
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Engine Speed, High Idle.............. 2950 ± 150 rpm
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