Honda EM3500X

Honda EM3500XThe Honda EM3500X is AC/DC portable generator with 3.5 KVA of maximum power, 3.0 KVA of rated power and 60Hz of rated frequency. The EM3500X 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 EM3500X generator uses a single-cylinder Honda GX240 gasoline engine 242 cc (14.8 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
ModelHonda EM3500X
Dimensions (L x W x H):605 x 495 x 485 mm (23.8 x 19.5 x 19.1 in)
Dry weight62.0 kg (136.7 lbs)
AC Rated voltage:120/240V
AC Rated output:3.0 KVA
AC Maximum output:3.5 KVA
AC Rated ampere:25/12.5A
Rated frequency:60 Hz
DC output:Only for charging automotive battery of 12V up to 8.3A
Fuel tank capacity17.0 liters (4.5 US gal, 3.7 Imp. gal))
Engine modelHonda GX240
Displacement242 cm3 (14.8 cu-in)
Bore x stroke73.0 x 58.0 mm (2.9 x 2.3 in)
Max. horsepower8.0 HP (6.0 kW) at 3,600 rpm
Max. torque17.0 Nm (1.7 kg·m, 12 ft·lb) at 2,500 rpm
CarburetorHorizontal type, butterfly valve
Cooling systemForced-air
Ignition systemTransistorized magneto ignition
Lubricating systemSplash
Starting systemRecoil starter
Stoping systemIgnition primary circuit ground
Fuel usedUnleaded gasoline (octane number 86 or higher)

Maintenance data

Cylinder compression6.0-8.5 kg/cm2 (85-151 psi) at 600 rpm
Valve clearance
Intake valve0.15 ± 0.02 (0.006 ± 0.001)
Exhaust valve0.20 ± 0.02 (0.008 ± 0.001)
Float height13.2 mm (0.52 in)
Pilot screw opening2
Oil system
Oil typeHonda 4-stroke or an equivalent (SE or SF)
Recommended oilSAE 10W-40, 10W-30
Oil capacity1.1 L (1.16 US gal, 0.97 lmp qt)
Ignition system
Ignition timing20 ° B.T.D.C (Fixed)
Spark plug NGK: BPR5ES
Spark plug gap0.7-0.8 mm (0.028-0.031 in)
Spark plug cap7.5-12.5 kΩ
Primary ignition coil resistance0.8-1.0 kΩ
Secondary ignition coil resistance5.9-7.1 kΩ
Ignition coil air gap0.4 ± 0.2 (0.016 ± 0.008)
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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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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