The Yamaha EF1000iS inverter generator is the ultimate in lightweight portable electricity. The EF1000iS - with its inverter system - features Pulse Width Modulation (PWM). That means these generators deliver clean power so you can use them confidently for powering computers, solid-state appliances with built-in computer functions or microcomputer-controlled power tools. Lightweight Design / Easy to Carry - Newly designed exterior and compact lightweight inverter unit reduces weight to 27.9 lbs. Lightest weight generator in its class. Noise Block Acoustically designed sound reduction system - Molded casing, noise-absorbing glass wool construction and a newly designed muffler produce unbeatable noise reduction. Long Run Time - Runs continuously for up to 12 hours without refueling (at 1/4 load with "Economy Control" function on). Smart Throttle Load sensing throttle control - Automatically adjusts engine speed to precisely match load, resulting in greater fuel efficiency and noise reduction. 12 Volt DC Output (Battery Charging Cables Included) - Recharge 12 volt batteries for RV, auto, marine, aircraft, etc. Inverter System with Pulse Width Modulation - Industry-leading system produces higher-quality and cleaner electricity. Results in pure sine wave as clean or cleaner than commercial power and can operate products with built in microcomputers. Exclusive Dual Coil Alternator Stator - Lower engine speed. Reduced noise, fuel consumption and engine wear. Centralized Control Panel - Control panel enables easy access to controls. Fuel Petcock - Reduces carburetor contamination by turning off gasoline flow and allowing the carburetor to run dry. OHV 50cc Engine (overhead valve) - Provides improved efficiency, increased reliability, low oil consumption and noise-reducing operation. Large Fuel Fill Access - Wide mouth fuel fill reduces spilling and overflow during refueling.

S P E C I F I C A T I O N S
TYPE	BRUSHLESS, INVERTER
MAXIMUM AC OUTPUT	1000 watts
RATED AC OUTPUT	900 watts
RATED / MAXIMUM AC CURRENT	7.5 / 8.3 amps @ 120V
ENGINE	OHV, AIR-COOLED, FOUR-STROKE, SINGLE CYLINDER
DISPLACEMENT / HP	50cc / 2.2 hp
G E N E R A L
OVERALL LENGTH	17.7"
OVERALL WIDTH	9.4"
OVERALL HEIGHT	14.9"
DRY WEIGHT	27.9 lbs.
FUEL TANK CAPACITY	.66 gallons
CONTINUOUS OPERATION AT 1/2 RATED LOAD	12.0 hrs.
NOISE LEVEL	47-57 dBA
WARRANTY	2 YEARS Limited Warranty