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Honda EB6500 Generator Set

The Honda EB6500 is a gasoline generator set powered by a Honda iGX390 engine. It is available at 120 V and 240 V, 60 Hz and rated 45.8 A. It holds about 1.1 L (0.3 gal) of oil. The set measures 736×706×773 mm (29.0×27.8×30.4 in), weighs about 100.9 kg (222 lb) and produces 73 dBA. An integrated tank holds 23.5 L (6.2 gal), roughly 7 hours of runtime.

0.389 L
Displacement
1.1 L
Oil capacity
4
Document types

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Service parts for the EB6500

Grouped by system, with how many of each the parts manual calls for.

Air intake

1 required
46449Air filter$63.74eBay

Fuel system

1 required
H34897-AF000Fuel filtersee priceAmazon

Oil system

1 required
H34896-AF000Oil filtersee priceAmazon

Belts

1 required
H34892-AF000Beltsee priceAmazon

Electrical

1 required
H34896-AB000Batterysee priceAmazon

Ignition

1 required
H34896-AP000Spark plugsee priceAmazon

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Fuelgasoline
Frequency60.0 Hz
Oil capacity1.1 L
Voltage options120 V, 240 V
Rated current45.8 A/22.9 A A
Dimensions (L×W×H)736×706×773 mm
Dry weight100 kg
Sound level73.0 dBA
Fuel tank23.5 L
Tank runtime7.0 hr

Engine

Honda iGX390
Oil capacity1.1 L
Displacement0.389 L
Rated speed3600 rpm

Maintenance & consumables

for the Honda iGX390
ItemSpecCapacityPart #Interval
Air filterClean in warm soapy water or non-flammable solvent, allow to dry, dip in clean engine oil and squeeze out excess464491000 hr eBay $63.74
Fuel filterH34897-AF000100 hr Amazon eBay
Oil filterSAE 10W-30, API SJ or later (or equivalent)H34896-AF000300 hr Amazon eBay
BatteryH34896-AB0001000 hr Amazon eBay
BeltH34892-AF000500 hr Amazon eBay
Coolant1.6 L—300 hr
Oil1.25 L—300 hr
Spark plugNGK: BPR6ESH34896-AP0001800 hr Amazon eBay

Service intervals

13
ItemActionHoursMonthsNotes
Engine oilChange300 hr12 moFirst service — First month or 20 hrs
Air cleanerClean50 hr3 moService more frequently when used in dusty areas (1)
Sediment cupClean100 hr6 moPage 58
Fuel tank and filterClean300 hr12 mo(2)
Spark arresterClean300 hr12 moEvery year or 300 Hrs; also must be serviced every 100 hours (page 71)
Spark plugAdjust300 hr12 moCheck-adjust every year or 300 Hrs (page 69)
Spark plugReplace300 hr12 moEvery year or 300 Hrs (page 69)
Valve clearanceAdjust300 hr12 moCheck-adjust every year or 300 Hrs; by servicing dealer (2)
Combustion chamberClean1000 hrAfter every 1,000 hrs
CanisterCheck24 moEvery 2 years (2)
Charge tubeCheck24 moEvery 2 years (2)
Fuel tubeCheck24 moEvery 2 years (replace if necessary) (2)
Purge tubeCheck24 moEvery 2 years (2)

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

54
TypeItemValueUnitCondition
ClearanceFloat height13.2mm
GapIgnition coil air gap0.2 – 0.6mm
GapSpark plug electrode gap0.028–0.031 in (0.7–0.8 mm)mm
GapSpark plug gap0.028–0.031in (0.7–0.8 mm)
GapSpark plug gap0.70 – 0.80mm
OtherCompression ratio8.2:1
PressureCylinder compression1.29MPaat 1,400 min-1 (rpm)
PressureCylinder compression1.31MPaat 1,400 min-1 (rpm)
ResistanceCT sensor resistance18 ±2Ω
ResistanceSpark plug cap resistance7.5 – 12.5kΩ
SpeedAuto Throttle idle speed2,300 ± 100min-1 (rpm)
SpeedEngine speed3,600rpm
SpeedEngine speed protection limit (DAVR self-diagnosis)4140rpmabnormal voltage/speed sustained longer than 3 seconds
SpeedMaximum engine speed3,600 ± 100min-1 (rpm)
TorqueAir cleaner case bolt5.4N·m
TorqueCarburetor mount nut8.5N·m
TorqueConnecting rod special bolt14N·m
TorqueControl panel mount bolt27N·m
TorqueCrankcase cover bolt24N·m
TorqueCylinder head bolt35N·m
TorqueEngine mount nut34N·m
TorqueExhaust pipe nut24N·m
TorqueFan cover stud bolt23N·m
TorqueFan cover stud bolt mounting nut40N·m
TorqueFlywheel special nut128N·m
TorqueFlywheel special nut170N·m
TorqueFront housing bolt24N·m
TorqueFuel meter screw4N·m
TorqueFuel valve nut23N·m
TorqueGenerator cooling fan screw4.8N·m
TorqueHandle installation17–22 lbf·ft (24–29 N·m, 2.4–3.0 kgf·m)N·m
TorqueHandle installation flange bolts19.5 lbf·ft (26.5 N·m, 2.7 kgf·m)lbf·ft
TorqueHanger kit flange bolts19.5 lbf·ft (26.5 N·m, 2.7 kgf·m)lbf·ft
TorqueHanger kit installation17–22 lbf·ft (24–29 N·m, 2.4–3.0 kgf·m)N·m
TorqueOil drain bolt22.5N·m
TorqueOil drain plug (12×15 mm)16.3 lbf·ft (22.1 N·m, 2.25 kgf·m)lbf·ft
TorqueOil drain plug (12×15 mm)16.6 lbf·ft (22.5 N·m, 2.25 kgf·m)N·m
TorqueRear housing cover bolt9.8N·m
TorqueRocker arm pivot adjusting nut10N·m
TorqueRocker arm pivot special bolt24N·m
TorqueRotor bolt44N·m
TorqueRubber mount nut24N·m
TorqueSpark plug13.0 lbf·ft (17.7 N·m, 1.8 kgf·m)lbf·ft
TorqueSpark plug13.3 lbf·ft (18 N·m, 1.8 kgf·m)N·m
TorqueSpark plug18N·m
TorqueWheel kit flange bolts19.5 lbf·ft (26.5 N·m, 2.7 kgf·m)lbf·ft
TorqueWheel kit installation17–22 lbf·ft (24–29 N·m, 2.4–3.0 kgf·m)N·m
Valve clearanceValve clearance EX0.20 ± 0.02mm
Valve clearanceValve clearance EX0.20±0.02mmcold
Valve clearanceValve clearance EX0.20±0.02 mmmmcold
Valve clearanceValve clearance IN0.15 ± 0.02mm
Valve clearanceValve clearance IN0.15±0.02mmcold
Valve clearanceValve clearance IN0.15±0.02 mmmmcold
VoltageVoltage regulation stability (DAVR)within 1%standard operation

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
Engine oilSAE 10W-30API service category SJ or later (or equivalent)1.1 LMaximum oil capacity 1.2 US qt (1.1 L); 4-stroke automotive detergent oil; other viscosities per ambient temperature chart
FuelRegular unleaded gasolinepump octane rating 86 or higher
FuelRegular unleaded gasoline, pump octane rating 86 or higherNo more than 10% ethanol (E10) or 5% methanol by volume23.5 LFuel tank capacity 6.21 US gal (23.5 L)
GreaseMarine greasewater resistant urea based grease
GreaseMulti-purpose greaseNLGI #2 or equivalentLithium based multi-purpose grease
OtherAutomatic transmission fluidATF

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

12
GFCI Operation Check (System ①) diagnostic

⚠ A faulty GFCI system will not provide proper protection against electric shock.

⚠ If the GFCI system fails the test, the generator must be repaired by an authorized Honda servicing dealer before use.

  1. Unplug all tools and appliances from the generator.
  2. Start the engine.
  3. Turn OFF the Auto Throttle switch.
  4. Turn the AC circuit breaker to the ON position.
  5. Press the TEST button: the RESET button should pop out and the AC circuit breaker should switch to OFF.
  6. Press the RESET button: it should stay in, flush with its base plate.
  7. With the RESET button in and the engine running, turn the AC circuit breaker to ON; it should remain ON.
GFCI Operation Check (System ②) diagnostic

⚠ If the red indicator starts to blink continuously, contact an authorized Honda generator dealer.

  1. Unplug all tools and appliances from the generator.
  2. Start the engine.
  3. Turn OFF the Auto Throttle switch.
  4. Turn the AC circuit breaker to the ON position; the green indicator should light continuously.
  5. Press the TEST button: the RESET button will pop out and the green indicator will go off.
  6. Press the RESET button: the green indicator will light continuously.
Handle Installation installation

⚠ Do not add fuel or oil before tipping the generator.

Tools: 12 mm wrench (2), pliers

  1. Install the handle holder assembly on the generator upper frame using the 8×18 mm flange bolts.
  2. Install the handle assembly on the upper frame pipe using 8×16 mm flange bolts, handle bush A, handle bush B, and handle lower bracket.
  3. Torque to 19.5 lbf·ft (26.5 N·m, 2.7 kgf·m).
  4. Check that the handle folds smoothly and does not hang down by its own weight.
Hanger Kit Installation installation

Tools: 12 mm wrench (2)

  1. Position the hanger at the generator's balance point.
  2. Fit the end tabs of the hanger through the bracket slots.
  3. Bolt the brackets to the hanger and tighten securely.
  4. Torque to 19.5 lbf·ft (26.5 N·m, 2.7 kgf·m).
Wheel Kit Installation installation

Tools: 12 mm wrench (2), pliers

  1. Install the two stands on the under frame using four 8×16 mm flange bolts.
  2. Install the two wheels on the axle shaft using the washers and split pins; bend the pins.
  3. Install the axle assembly using four 8×16 mm flange bolts and 8 mm flange nuts.
  4. Torque to 19.5 lbf·ft (26.5 N·m, 2.7 kgf·m).
Air Cleaner Check/Cleaning maintenance

⚠ Excess oil will restrict air flow and may cause engine to smoke at startup.

⚠ Operating without element or loose element allows dirt to enter engine.

  1. Remove air cleaner case lid springs and unhook tabs.
  2. Remove air cleaner cover and element.
  3. Check element and replace if damaged.
  4. Clean element in warm soapy water or non-flammable solvent, dry thoroughly.
  5. Dip filter in clean engine oil, squeeze out excess oil.
  6. Install air cleaner in reverse order of removal.
Air Cleaner Element Cleaning maintenance

⚠ Do not twist the foam filter when squeezing.

⚠ Prevent dirt from entering the air duct that leads to the carburetor.

  1. Clean the foam air filter in warm soapy water, rinse, and allow to dry thoroughly, or clean in non-flammable solvent and dry.
  2. Dip the foam air filter in clean engine oil, then squeeze out all excess oil.
  3. Wipe dirt from the air cleaner housing and cover using a moist rag.
Air Cleaner Service maintenance

⚠ Operating the engine without an air filter or with a damaged air filter will allow dirt to enter the engine.

  1. Unsnap the air cleaner cover clips and open the air cleaner cover.
  2. Free the hooks from the setting pins and remove the cover to the right side of the frame pipe.
  3. Remove the air cleaner element from the air cleaner case.
  4. Check the element; clean if dirty, replace if damaged.
  5. Reinstall the element, set the hooks to the pins, and push the cover to lock the clips.
Battery Charging maintenance

⚠ Battery gives off explosive gases; keep sparks, flames, and cigarettes away.

⚠ Battery contains sulfuric acid; contact with skin or eyes may cause severe burns.

Tools: Digital multimeter, Battery charger

  1. Turn combination switch OFF.
  2. Remove battery.
  3. Check battery for damage.
  4. Leave battery for 30 minutes.
  5. Measure battery voltage with digital multimeter.
  6. If below 12.4 V, charge battery.
  7. Connect charger positive to positive, negative to negative.
  8. Leave for 30 minutes.
  9. Measure voltage; if below 12.7 V, charge.
  10. If still below 12.7 V, replace battery.
Draining the Fuel Tank and Carburetor maintenance

⚠ Gasoline is highly flammable and explosive; keep heat, sparks, and flame away.

⚠ Handle fuel only outdoors.

Tools: funnel

  1. Turn the fuel valve lever to the OFF position.
  2. Place a suitable gasoline container below the carburetor.
  3. Loosen the carburetor drain screw and drain the gasoline.
  4. Tighten the carburetor drain screw securely.
  5. Place a container below the sediment cup and remove the sediment cup.
  6. Turn the fuel valve lever to ON and drain the fuel from the tank.
  7. Install the sediment cup and a new O-ring.
Engine Oil Change maintenance

⚠ Wash your hands with soap and water after handling used oil.

⚠ Dispose of used oil properly.

  1. Place a suitable container below the engine.
  2. Remove the oil filler cap/dipstick, 12×15 mm drain plug, and sealing washer.
  3. Allow the used oil to drain completely.
  4. Reinstall the drain plug and a new sealing washer; tighten securely.
  5. Fill to the upper limit mark with recommended oil.
  6. Reinstall the oil filler cap/dipstick securely.
Engine Oil Level Check maintenance
  1. Place engine on level surface.
  2. Remove oil filler cap and wipe oil level gauge clean.
  3. Insert oil filler cap without screwing in.
  4. Remove cap and check oil level on gauge.
  5. If near or below lower mark, fill to upper mark with recommended oil.
  6. Tighten oil filler cap securely.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

Which engine powers the Honda EB6500?

The Honda EB6500 is powered by the Honda iGX390 engine.

Is the Honda EB6500 diesel or gas?

The Honda EB6500 runs on gasoline.

How much oil does the Honda EB6500 take?

The Honda iGX390 engine in the Honda EB6500 has an oil capacity of 1.1 liters.

What is the sound level of the Honda EB6500?

The Honda EB6500 is rated at 73.0 dBA, per the manufacturer specification sheet.

How much does the Honda EB6500 weigh?

The Honda EB6500 has a dry weight of 100 kg (222 lb).

What size fuel tank does the Honda EB6500 have?

The Honda EB6500 has a 23.5 liter (6 US gallon) fuel tank, giving about 7.0 hours of runtime.

What voltages is the Honda EB6500 available in?

The Honda EB6500 is offered in 120 V, 240 V.

Which oil filter part number does the Honda EB6500 take?

The Honda EB6500 uses oil filter part number H34896-AF000.

What fuel filter fits the Honda EB6500?

The Honda EB6500 uses fuel filter part number H34897-AF000.

Which air filter part number does the Honda EB6500 take?

The Honda EB6500 uses air filter part number 46449.

Parts

29
Part #DescriptionQtySystem
55-2674-A00-000Engine Oil1Oil Amazon eBay
55-2683-A00-000Air Cleaner Element1Air filter Amazon eBay
55-2689-A00-000Spark Plug1Spark plug Amazon eBay
98079-55846Spark Plug BPR5ESSpark plug Amazon eBay $9.99 eBay $15.99 NAPA $2.76
AECM103FBSAutomatic Engine Control Module (controller)1ECM / ECU Amazon eBay
EM5000SX-000002Oil Filter1Oil filter Amazon eBay
H24596-A3A-000Air Cleaner Element1Air filter Amazon eBay
H24597-A3A-000Spark Plug1Spark plug Amazon eBay
H24598-A3A-000Oil Filter1Oil filter Amazon eBay
H24599-A3A-000Fuel Filter1Fuel filter Amazon eBay
H24600-A3A-000Coolant Filter1Coolant filter Amazon eBay
H24601-A3A-000Belt1Belt Amazon eBay
H24602-A3A-000Battery1Battery Amazon eBay
H34892-AF000Belt, Honda OE1Belt Amazon eBay
H34895-AF000Air Filter, Honda OE1Air filter Amazon eBay
H34896-AB000Battery, 12V, 7.5Ah, Honda OE1Battery Amazon eBay
H34896-AF000Oil Filter, Honda OE1Oil filter Amazon eBay
H34896-AP000Spark Plug, NGK Iridium2Spark plug Amazon eBay
H34897-AF000Fuel Filter, Honda OE1Fuel filter Amazon eBay
W16EPR-USpark Plug1Spark plug Amazon eBay $20.00 NAPA $2.53
00X31-Z37-6160QUICK REFERENCE INFORMATIONService part / kit Amazon eBay
06610-Z22-800AHuniversal remote kit w/50’ cable1Service part / kit Amazon eBay
06610-Z22-800ZAremote kit w/30’ cable1Service part / kit Amazon eBay $72.11
07ZAJ-RDJA110BACK PROBE ADAPTER, 17mm (2)Service part / kit Amazon eBay $55.48
31500-MCR-D02Battery PNService part / kit eBay $41.99
31Z37616QUICK REFERENCE INFORMATIONService part / kit Amazon eBay
32520-Z22-850AH50’ ext. cable1Service part / kit Amazon eBay
38240-ZE2-8403 amp circuit breakerService part / kit Amazon eBay $30.00
55-2694-A00-000GFCI Operation Canister1Service part / kit Amazon eBay

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Available documents

Reference — Honda-Generators-Accessory-Catalog (Honda)Reference — honda-industrial-series-genera 10781188 (Honda)Owner's manual — 00X31Z238120 (Honda)Owner's manual — 00X31Z238250 (Honda)Parts manual — otr54654c (Honda)Service manual — Honda EM6500SX21 Generator Shop Manual (Ser No EBJC-1000001-1499999) (Honda)Service manual — pci54807a (Honda)

This page was generated from the 7 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Air filter 46449$63.74
1 priced item$63.74
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