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Yamaha EF1000iS
Yamaha EF1000iS

Specs

General Information

Manufacturer
Yamaha
Yamaha
Model
EF1000iS
EF1000iS
Model Code
EF1000IS
EF1000IS
Color
Blue
Blue

Engine

Fuel Type
Gasoline
Gasoline
Displacement
50 cc
50 cc
Battery
Charge Cord - Included
Charge Cord - Included
Cooling
Air
Air
Fuel Tank Capacity
0.66 gal.
0.66 gal.
Engine Type
4-stroke, single-cylinder, OHV
4-stroke, single-cylinder, OHV

Measurements

Weight
Dry - 27.9 lb.
Dry - 27.9 lb.
Height
14.9 in.
14.9 in.
Width
9.4 in.
9.4 in.
Length
17.7 in.
17.7 in.

Operational

Continuous Operating Hours
1 / 4 Rated Load - 11.9 hr
1 / 4 Rated Load - 11.9 hr
AC Frequency
Frequency Stability - + / - 177; 0.1 Hz
Frequency Stability - + / - 177; 0.1 Hz
Rated AC Current

7.5 A @ 120 V

Maximum AC Current - 8.3 A @ 120 V

7.5 A @ 120 V

Maximum AC Current - 8.3 A @ 120 V

Rated AC Output
900 W
900 W
Noise Level
1 / 4 Rated Load - 47 - 57 dBA
1 / 4 Rated Load - 47 - 57 dBA
DC Output
8 A @ 12 V
8 A @ 12 V
DC Voltage
Voltage Stability - + / - 177; 1%
Voltage Stability - + / - 177; 1%
Maximum AC Output
1,000 W
1,000 W

Other

Warranty
3 years limited (except commercial / rental use = 2 year)
3 years limited (except commercial / rental use = 2 year)

Features

Features

  • LIGHTWEIGHT, EASY TO CARRY DESIGN: Compact lightweight alternator reduces weight to 27.9 lb., the lightest weight in its class
  • SMART THROTTLE, LOAD SENSING RPM CONTROL: Greater fuel efficiency and noise reduction by automatically adjusting engine speed to match the load
  • AUTO WARM-UP: Automatically increases engine speed for 4~6 minutes to ensure smooth power delivery during cold start ups
  • 12 VOLT DC OUTPUT, BATTERY-CHARGING CABLES INCLUDED: Recharge 12-volt batteries for RV, auto, marine, etc.
  • EXCLUSIVE DUAL COIL ALTERNATOR STATOR: Greater output at a lower engine speed for reduced noise, fuel consumption, and engine wear
  • CENTRALIZED CONTROL PANEL: Easy access to controls
  • GASOLINE PETCOCK LETS YOU SHUT OFF THE GAS TO RUN THE CARB DRY FOR STORAGE: Prevents stale gas problems
  • 50CC OVERHEAD VALVE (OHV) ENGINE: Noise-reducing operation with improved efficiency, increased reliability, and low oil consumption
  • LARGE FUEL FILL ACCESS: Wide mouth fuel fill reduces spilling and overflows during refueling
  • FACTORY WARRANTY: Covers the entire generator for defects in parts and workmanship for three (3) years when the generator is used for non commercial, industrial or rental use. When the generator is used for commercial, industrial or rental use, Yamaha covers the generator for two (2) years
  • Not for sale in CA. 49 State Legal
  • ENGINE SPEED @ 1 / 4 LOAD: 3,000 rpm

Top Features

  • The EF1000iS weighs in at 27.9 pounds, making it extremely portable.
  • Noise Block is Yamaha’s acoustically engineered sound reduction system which helps make the EF1000iS among the quietest portable generator in its class. (47 dBA to 57 dBA – ¼ rated to rated load).
  • Gasoline petcock lets you shut off the gas to run the carb dry for storage and helps prevent stale gas problems.
  • The EF1000iS features Smart Throttle, a load sensing rpm control that allows greater fuel efficiency and noise reduction by automatically adjusting engine speed to match the load. It will run up to 12 hours at ¼ rated load on a tank of gas.
  • The Yamaha EF1000iS inverter generator supplies clean, high quality power. The EF1000iS with its inverter system features Pulse Width Modulation (PWM) so voltage stability is within ± 1%, and frequency stability is ± 0.1 HZ. Its pure sine wave is as clean as or cleaner than public utilities power.
  • The Auto Warm-up feature automatically increases engine speed for 4~6 minutes to ensure smooth power delivery during cold start ups.
  • Yamaha’s Oil Watch Warning System helps prevent engine damage from low oil and provides added peace of mind..

Features

  • LIGHTWEIGHT, EASY TO CARRY DESIGN: Compact lightweight alternator reduces weight to 27.9 lb., the lightest weight in its class
  • SMART THROTTLE, LOAD SENSING RPM CONTROL: Greater fuel efficiency and noise reduction by automatically adjusting engine speed to match the load
  • AUTO WARM-UP: Automatically increases engine speed for 4~6 minutes to ensure smooth power delivery during cold start ups
  • 12 VOLT DC OUTPUT, BATTERY-CHARGING CABLES INCLUDED: Recharge 12-volt batteries for RV, auto, marine, etc.
  • EXCLUSIVE DUAL COIL ALTERNATOR STATOR: Greater output at a lower engine speed for reduced noise, fuel consumption, and engine wear
  • CENTRALIZED CONTROL PANEL: Easy access to controls
  • GASOLINE PETCOCK LETS YOU SHUT OFF THE GAS TO RUN THE CARB DRY FOR STORAGE: Prevents stale gas problems
  • 50CC OVERHEAD VALVE (OHV) ENGINE: Noise-reducing operation with improved efficiency, increased reliability, and low oil consumption
  • LARGE FUEL FILL ACCESS: Wide mouth fuel fill reduces spilling and overflows during refueling
  • FACTORY WARRANTY: Covers the entire generator for defects in parts and workmanship for three (3) years when the generator is used for non commercial, industrial or rental use. When the generator is used for commercial, industrial or rental use, Yamaha covers the generator for two (2) years
  • Not for sale in CA. 49 State Legal
  • ENGINE SPEED @ 1 / 4 LOAD: 3,000 rpm

Top Features

  • The EF1000iS weighs in at 27.9 pounds, making it extremely portable.
  • Noise Block is Yamaha’s acoustically engineered sound reduction system which helps make the EF1000iS among the quietest portable generator in its class. (47 dBA to 57 dBA – ¼ rated to rated load).
  • Gasoline petcock lets you shut off the gas to run the carb dry for storage and helps prevent stale gas problems.
  • The EF1000iS features Smart Throttle, a load sensing rpm control that allows greater fuel efficiency and noise reduction by automatically adjusting engine speed to match the load. It will run up to 12 hours at ¼ rated load on a tank of gas.
  • The Yamaha EF1000iS inverter generator supplies clean, high quality power. The EF1000iS with its inverter system features Pulse Width Modulation (PWM) so voltage stability is within ± 1%, and frequency stability is ± 0.1 HZ. Its pure sine wave is as clean as or cleaner than public utilities power.
  • The Auto Warm-up feature automatically increases engine speed for 4~6 minutes to ensure smooth power delivery during cold start ups.
  • Yamaha’s Oil Watch Warning System helps prevent engine damage from low oil and provides added peace of mind..