Also available: EF5200DE (Electric Start) $2,099
This one's got all the great features and reliability of the EF4000DE with a little more oomph-5200 peak watts to be exact-enough to run most residential well pumps, multiple power tools simultaneously and major appliances. A reliable 301cc Yamaha four-stroke engine runs for up to 706 hours on a single tank of fuel, and Yamaha engineering keeps the noise down to a nice, quiet 73 dBA. Naturally, it gets all the Yamaha good stuff as well: AC non-fuse thermal breaker circuitry, electric starting*, TCI, brushless alternator, Oil Watch Warning System...and even with all those features and power, the EF5200DE weighs just 191 pounds.
Battery not included.
View specs: http://www.yamahamotorsports.com/powerproducts/products/modelspecs/448/0/specs.aspx