The EU1000i puts out 900 W continuously and up to 1,000 W for a few seconds when a motor starts. It runs up to 6.8 h at ¼ load on a full 0.55 gal2.1 L tank. It weighs 29.5 lb13.4 kg. Noise is rated at 42 dBA at ¼ load, distance not stated. It takes 8 fl oz0.25 L of engine oil, and the source recommends SAE 10W-30, API SJ or later. The spark plug is NGK LR4C-E, gap 0.024–0.028 in (0.6–0.7 mm).
Specifications
Units: /| Power | |
|---|---|
| Running output | 900 W 1Honda calls this rated output (7.5 A). |
| Starting output | 1,000 W 1Honda calls this maximum output (8.3 A). |
| Voltage | 120 V 1 |
| Inverter (clean power for electronics) | Yes 1 |
| Engine | |
| Engine | Honda GXH50 1 |
| Displacement | 49.4 cc 1 |
| Fuel | Unleaded gasoline, pump octane 86 or higher 2 |
| Starting | Recoil 1 |
| Fuel and run time | |
| Tank | 0.55 gal2.1 L 2 |
| Run time | 6.8 h 1at ¼ load3.0 hours at rated load. |
| Size and noise | |
| Weight | 29.5 lb13.4 kg 2Dry weight, from the owner's manual for the 50-state (AG) type. Honda's model page lists 28.7 lb. |
| Length × width × height | 17.8 × 9.5 × 14.9 in451 × 242 × 379 mm 2 |
| Noise | 42 dBA 1at ¼ load, distance not stated50 dB(A) at rated load. |
| Outlets | |
| Outlets | 1 × 125 V 15 A duplex |
| Other | |
| CO shutdown | CO-MINDER 1 |
| Emissions certification | 49-state (EU1000T1AN) and 50-state (EU1000T1AG) versions 1 |
| Warranty | 3 years residential, 12 months commercial 1 |
Oil, spark plug and service
What to have on the bench before an oil change or tune-up.
| Oil capacity | 8 fl oz0.25 L 2Honda's manual prints "8 oz (0.25 L)". The two don't match exactly: 0.25 L is about 8.5 fl oz. |
| Oil type | SAE 10W-30, API SJ or later 2 |
| Spark plug | NGK LR4C-E, gap 0.024–0.028 in (0.6–0.7 mm) 2 |
| Change oil every | After the first month or 10 hours, then every 6 months or 100 hours 2 |
Parts
Search links for common parts. Check the part number against the label on your unit before you buy.
| Part | Find it |
|---|---|
| Air filter | Amazon · eBay |
| Spark plug | Amazon · eBay |
| Engine oil | Amazon · eBay |
We may earn a small commission if you buy through these links. It doesn't change what we list. More.
Model numbers
This page covers model numbers EU1000T1AN, EU1000T1AG. Brands often sell the same name under several numbers with small differences, so check the label on the frame.
Compare
Often compared: Honda EU2000i, Yamaha EF2000iS, Predator 2000 Super Quiet Inverter
Questions people ask
How much oil does the Honda EU1000i take?
8 fl oz0.25 L. Oil type: SAE 10W-30, API SJ or later. Oil change: After the first month or 10 hours, then every 6 months or 100 hours.
What spark plug does the Honda EU1000i use?
NGK LR4C-E, gap 0.024–0.028 in (0.6–0.7 mm), according to the source. Check the plug in your unit before you buy a replacement.
How long does the Honda EU1000i run on a tank?
6.8 h. That's at ¼ load, according to the source. More load means less time.
How much does the Honda EU1000i weigh?
29.5 lb13.4 kg. Dry weight, from the owner's manual for the 50-state (AG) type. Honda's model page lists 28.7 lb.
How loud is the Honda EU1000i?
42 dBA. Measured at ¼ load, distance not stated.
What's the difference between 900 W and 1,000 W?
900 W is what it can supply continuously. 1,000 W is a short burst for the moment a motor (a fridge, a pump, an AC unit) starts up.
Sources
- Honda EU1000i model page. Manufacturer, accessed November 11, 2026.
- Honda EU1000i owner's manual (made on or after 4/1/23). Owner's manual, accessed November 11, 2026.
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