Yamaha generators have the longest emission engine durability
ratings issued by the Environmental Protection Agency and the
California Air Resources Board.
Gasoline petcock lets you shut off the gas to run the carb dry for
storage and helps prevent stale gas problems.
Fuel gauge allows fuel level to be seen at-a-glance.
The EF2000iS is powerful, portable and retro-modern and delivers
maximum output with minimum effort. It weighs a mere 44 compact
pounds, making it easy to transport.
The EF2000iS is fitted with Yamaha’s most technologically
sophisticated muffler. It’s so quiet that you can have a conversation
near one and may not realize it is running. (51.5 dBA to 61 dBA – ¼
rated to rated load).
It is very compact (2.2 cu.ft.) which makes it easy to store and
If you need extra juice, the EF2000iS has you covered—a
convenient parallel function lets you connect two generators to
deliver up to 30 maximum amps.
Meets even strict California Air Resources Board and
Environmental Protection Agency standards for low emissions.
Yamaha’s Oil Watch Warning System helps prevent engine
damage from low oil and provides added peace of mind.
Light weight — 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
OHV engine with cast iron cylinder liner — Efficient, reliable,
powerful providing long life and excellent heat dissipation
TwinTechTM capability — Hook up two EF2000iS’s for 3600 watts,
30 amps of maximum power (requires accessory cable available at
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 down time, adding
customer confidence and peace of mind
Fuel gauge — See fuel gauge at-a-glance
Auto-decompression system — Reduces compression for
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 & CARB Emission Engine Durability Rating — Yamaha
generators have the longest emission engine durability ratings
issued by the Environmental Protection Agency and the California Air
50 state legal — Meets EPA emissions and CARB regulations
Factory Warranty — Covers the entire generator for defects in
parts and workmanship for three (3) years
Available Accessories & Options:
Accessory Cover — Added protection, includes a storage pocket
for Owner’s manual, tool kit, and battery charging cables
Accessory Hour Meter/Tachometer — Keep track of running
time for service needs
Am/WattTM Appliance Load Tester — Gives quick, accurate
readout of watts or amps used by 120 volt AC electrical devices
Yamaha Extended Service — Additional 1, 2 or 3 years of
Y.E.S. is available