The Honda EM1800X is AC/DC portable generator with 1.8 KVA of maximum power, 1.5 KVA of rated power and 60Hz of rated frequency. The EM1800X generator is available with AC 120V and DC 12V rated voltage. The direct current terminals can be used for charging 12-volt automotive-type batteries only up to 8.3A.
The Honda EM1800X generator with serian number 1004094 – 9999999 is equipped with the GX160 K1 single-cylinder gasoline engine with 163 cm3, (9.9 cu·in) of displacement. The engine has an OHV (overhead valve) design, horizontal carburetor with butterfly valve, and transistorized magneto ignition system. The GX160 K1 engine’s compression ratio rating is 8.5:1, cylinder bore and piston stroke are 68.0 mm (2.7 in) and 45.0 mm (1.8 in), respectively.
The engine produced 6.0 PS (4.4 KW; 6.0 HP) at 4,000 rpm of maximum horsepower and 11 N·m (1.1 kg·m, 8.0 ft·lb) at 2,500 rpm of torque.
The Honda EM1800X generator with serial number 1000001 – 1004093 uses the Honda GX140 engine. The cylinder bore is 64.0 mm (2.52 in) and the piston stroke is 45.0 mm (1.77 in). The compression ratio rating is 8.7:1.
The Honda GX140 engine produced 5.0 PS (3.6 kW; 4.8 HP) at 4,000 rpm of maximum output power and 9.8 N·m (1 kg·m, 7.2 ft·lb) at 2,800 rpm of peak torque.
General information
| Generator Specifications | ||
| Model | Honda EM1800X | |
| Dimensions (L x W x H): | 505 x 410 x 415 mm (19.9 x 16.1 x 16.3 in) | |
| Dry weight | 41.5 kg (91.5 lbs) | |
| AC Rated voltage: | 120V | |
| AC Rated output: | 1.5 KVA | |
| AC Rated ampere: | 12.5 A | |
| AC Maximum output: | 1.8 KVA | |
| Rated frequency: | 60 Hz | |
| DC output: | Only for charging automotive battery of 12V up to 8.3A | |
| Fuel tank capacity | 11.0 liters (2.9 US gal, 2.4 Imp. gal) | |
| Engine GX160 | ||
| Model | Honda GX160 K1 | |
| Displacement | 163 cm3 (9.9 cu-in) | |
| Bore x stroke | 68.0 x 48.0 mm (2.7 x 1.8 in) | |
| Max. horsepower | 6.0 PS (4.4 KW; 6.0 HP) at 4,000 rpm | |
| Max. torque | 11 N·m (1.1 kg·m, 8.0 ft·lb) at 2,500 rpm | |
| Carburetor | Horizontal type, butterfly valve | |
| Cooling system | Forced-air | |
| Ignition system | Flywheel magneto ignition | |
| Lubricating system | Splash | |
| Starting system | Recoil starter | |
| Stoping system | Ignition primary circuit ground | |
| Fuel used | Unleaded gasoline (octane number 86 or higher) | |
| Engine GX140 | ||
| Model | Honda GX140 | |
| Displacement | 144 cm3 (8.8 cu-in) | |
| Bore x stroke | 64.0 x 45.0 mm (2.5 x 1.77 in) | |
| Max. horsepower | 5.0 PS (3.6 kW; 4.8 HP) at 4,000 rpm | |
| Max. torque | 9.8 N·m (1 kg·m, 7.2 ft·lb) at 2,800 rpm | |
| Carburetor | Horizontal type, butterfly valve | |
| Cooling system | Forced-air | |
| Ignition system | Flywheel magneto ignition | |
| Lubricating system | Splash | |
| Starting system | Recoil starter | |
| Stoping system | Ignition primary circuit ground | |
| Fuel used | Unleaded gasoline (octane number 86 or higher) | |
Honda GX160 maintenance data
| Engine | |
| Cylinder compression: | 6.0-8.5 kg/cm2 (85-121 psi) at 600 rpm |
| Valve clearance | |
| Intake valve clearance: | 0.13-0.17 mm (0.0051-0.0067 in) |
| Exhaust valve clearance: | 0.18-0.22 mm (0.0071-0.0087 in) |
| Oil system | |
| Lubrication system: | Splash type |
| Oil type: | SAE 10W-30 |
| Recommended oil: | API SG, SF/CC, CD |
| Oil capacity: | 0.6 L (0.63 US. qt, 0.53 Imp. qt.) |
| Fuel system | |
| Type: | Horizontal carburetor with butterfly valve |
| Float height: | 13.7 mm (0.5394 in) |
| Ignition system | |
| Type: | Transistorized magneto ignition |
| Ignition timing: | 25° B.T.D.C. (Fixed) |
| Spark plug: | NGK: BP6ES, BPR6ES NIPPONDENSO: W20EP-U, W20EPR-U |
| Spark plug gap: | 0.7-0.8 mm (0.0276-0.0315 in) |
| Spark plug torque: | 18 N·m (1.8 kg·m, 13.3 ft·lb) |
| Ignition coil air gap | 0.2-0.6 mm (0.0079-0.0240 in) |
Honda GX140 maintenance data
| Engine | |
| Cylinder compression | 6.0-8.5 kg/cm2 (85-151 psi) at 600 rpm |
| Carburetor | |
| Type | Horizontal type, butterfly valve |
| Main jet | #68 |
| Float height | 13.7±1.5 mm (0.54±0.06 in) |
| Pilot screw opening | 1 turns out |
| Oil system | |
| Lubricating system | Splash type |
| Oil type | Honda 4-stroke or an equivalent (SE or SF) |
| Recommended oil | SAE 10W-30 |
| Oil capacity | 0.6 L (0.63 US. qt, 0.53 Imp. qt.) |
| Ignition system | |
| Ignition timing | B.T.D.C. 25° / 1,400 rpm |
| Type | Transistorized magneto ignition |
| Spark plug | NGK: BPR6ES NIPPONDENSO: W20EPR-U |
| Spark plug gap | 0.7-0.8 mm (0.028-0.031 in) |
| Ignition coil air gap | 0.2-0.6 mm (0.01-0.02 in) |
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