The Honda EC4000 is a single-phase AC 115/230V portable generator with 3.6 kVA of maximum power and 3.4 kVA of rated power and 50 Hz of rated frequency. The EC4000 generator is available with 115/230 V rated voltage (B type) or 230 V only (F, GV, IT types).
The Honda EC4000 generator uses single-cylinder (inclined by 25°) Honda GX270 gasoline engine (270 cc; 16.5 cu.in.). The engine has an overhead valve (OHV) design. The GX270 uses a recoil starter, horizontal carburetor with butterfly valve and transistorized magneto ignition. Cylinder bore and the piston stroke are 77.0 mm (3.0 in) and 58.0 mm (2.3 in), respectively. Compression ratio rating is 8.2:1.
The GX270 produced 9.0 HP (6.7 kW) at 3600 rpm of maximum horsepower and 19.5 Nm (1.95 kg·m, 14 ft·lb) of torque.
General information
| Generator Specifications | ||
| Model | Honda EC4000 | |
| Type | F, GV, IT | B |
| Dimensions (L x W x H): | 800 x 550 x 540 mm (31.5 x 21.7 x 33.6 in) | |
| Dry weight (without tines) | 58.0 kg (127 lbs) | |
| AC Rated voltage: | 115V/230V | 230V |
| AC Rated output: | 3.4 kVA | |
| AC Maximum output: | 3.6 kVA | |
| Rated frequency: | 50 Hz | |
| Rated current: | 15 A | 30/15 A |
| DC output: | – | |
| Fuel tank capacity | 6.0 L | |
| Engine | ||
| Engine model | Honda GX270 | |
| Displacement | 270 cm3 (16.5 cu-in) | |
| Bore x stroke | 77.0 X 58.0 mm (3.0 x 2.3 in) | |
| Max. horsepower | 9.0 HP (6.7 kW) at 3,600 rpm | |
| Max. torque | 19.5 Nm (1.95 kg·m, 14 ft·lb) | |
| 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 | |
| Maximum speed | 3,850 ± 150 rpm |
| Idle speed | 1,400 ± 150 rpm |
| 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 (SG.SF/CC.CD) |
| Recommended oil | SAE 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: BP6ES, BPR6ES NIPPONDENSO: W20EP-U, W20EPR-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) |
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