2015 Yamaha Inverter EF2000iS


2015 Yamaha Inverter EF2000iS

Inverter EF2000iS

Lightweight, quiet and powerful. Powerful, portable and retro-cool, delivering maximum output with minimum effort. 


  • Lightweight — Easy transport
  • Super-quiet muffler with USFS-approved spark arrestor — Only 51.5 dBA at 1/4 load and eliminates errant sparks
  • Compact — 2.2 cu. ft. size is easy to store and transport
  • OHV engine — Includes steel camshaft and valve train components
  • OHV engine with cast iron cylinder liner — Efficient, reliable, powerful providing long life and excellent heat dissipation
  • TwinTech™ capability — Hook up 2 EF2000iSs for 3,600W, 30A of maximum power (requires accessory cable available at extra cost)
  • Smart Throttle varies engine speed based on load — Improves fuel economy and reduces noise
  • Inverter system with Pulse Width Modulation (PWM) control — Produces a pure sine wave to run products with built-in microcomputers or microcomputer-controlled electric tools
  • Oil Watch Warning system — Prevents engine damage caused by low oil, avoiding costly repairs and minimizing downtime, adding customer confidence and peace of mind
  • Fuel gauge — See fuel gauge at-a-glance
  • Auto-decompression system — Reduces compression for easier starting
  • Comfortable grip handle — Easy portability and storage
  • Electrical overload breaker — Prevents generator damage in case of overload
  • Centralized controls — Easy access to controls
  • DC outlet — 8A, 12V outlet for charging batteries (cables included)
  • Rubber vibration isolation feet — ABSorbing feet for smooth operation and noise reduction
  • Easily detachable side panels — For easier serviceability
  • Noise Block sound reduction system — Very quiet
  • EPA and CARB Emission Engine Durability Rating — Yamaha generators have the longest emission engine durability ratings issued by the Environmental Protection Agency and the California Air Resources Board
  • 50 state legal — Meets EPA emissions and CARB regulations

General Information

Manufacturer Yamaha
Model Year 2015
Model Inverter EF2000iS
Color Blue


Engine Make OHV, 4-stroke
Bore x Stroke 1
Displacement 79cc
Cooling Air
Fuel Tank Capacity 1.1 gal.


Weight 44.1 lbs. dry
Height 17.9 in.
Width 11 in.
Length 19.3 in.


Continuous Operating Hours 10.5 hrs. @ 1/4 rated load
AC Frequency Maximum AC Output: 2,000WRated AC Output: 1,600W
DC Voltage DC Output: 12VRated / Maximum AC Current: 120V