The Honda EM3800SX is AC/DC portable generator with 3.8 KVA of maximum power, 3.3 KVA of rated power and 60Hz of rated frequency. The EM3800SX generator is available with AC 120/240V rated voltage and DC 12V rated voltage. The direct current terminals can be used for charging 12-volt automotive-type batteries only up to 8.3 A.
The Honda EM3800SX generator uses a single-cylinder Honda GX240 gasoline engine 242 cc (14.8 cu.in.). The engine has an overhead valve (OHV) design. The GX240 uses a horizontal carburetor with a butterfly valve and transistorized magneto ignition. The cylinder bore and the piston stroke are 73.0 mm (2.9 in) and 58.0 mm (2.3 in), respectively. The compression ratio rating is 8.2:1.
The GX240 produced 8.2 PS (6.0 KW; 8.0 HP) at 3,600 rpm of maximum horsepower and torque was 17.0 Nm (1.7 kg·m, 12 ft·lb) at 2,500 rpm.
General information
Generator Specifications | ||
Model | Honda EM3800SX | |
Dimensions (L x W x H): | 1,040 x 691 x 721 mm (40.9 x 27.2 x 28.4 in) | |
Dry weight | AC type (California type): 87.6 kg (193.1 lbs) AN type (Non-California type): 87.1 kg (192.0 lbs) | |
AC Rated voltage: | 120/240V | |
AC Rated output: | 3.3 KVA | |
AC Maximum output: | 3.8 KVA | |
AC Rated ampere: | 27.5/13.8A | |
Rated frequency: | 60 Hz | |
DC output: | Only for charging automotive battery of 12V up to 8.3A | |
Fuel tank capacity | 25.0 liters (6.6 US gal, 5.5 Imp. gal) | |
Engine | ||
Engine model | Honda GX240 | |
Displacement | 242 cm3 (14.8 cu-in) | |
Bore x stroke | 73.0 x 58.0 mm (2.9 x 2.3 in) | |
Max. horsepower | 8.0 HP (6.0 kW) at 3,600 rpm | |
Max. torque | 17.0 Nm (1.7 kg·m, 12 ft·lb) at 2,500 rpm | |
Carburetor | Horizontal type, butterfly valve | |
Cooling system | Forced-air | |
Ignition system | Transistorized magneto ignition | |
Lubricating system | Splash | |
Starting system | Recoil starter | |
Stoping system | Ignition primary circuit ground | |
Fuel used | Unleaded gasoline (octane number 86 or higher) |
Maintenance data
Engine | |
Cylinder compression | 6.0-8.5 kg/cm2 (85-151 psi) at 600 rpm |
Valve clearance | |
Intake valve | 0.15 ± 0.02 (0.006 ± 0.001) |
Exhaust valve | 0.20 ± 0.02 (0.008 ± 0.001) |
Carburetor | |
Float height | 13.2 mm (0.52 in) |
Pilot screw opening | 2 |
Oil system | |
Oil type | Honda 4-stroke or an equivalent (SE or SF) |
Recommended oil | SAE 10W-40, 10W-30 |
Oil capacity | 1.1 L (1.16 US gal, 0.97 lmp qt) |
Ignition system | |
Ignition timing | 20 ° B.T.D.C (Fixed) |
Spark plug | NGK: BPR5ES NIPPONDENSO: W16EPR-U |
Spark plug gap | 0.7-0.8 mm (0.028-0.031 in) |
Spark plug cap | 7.5-12.5 kΩ |
Primary ignition coil resistance | 0.8-1.0 kΩ |
Secondary ignition coil resistance | 5.9-7.1 kΩ |
Ignition coil air gap | 0.4 ± 0.2 (0.016 ± 0.008) |
We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.
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