A rugged 357 cubic centimeter Yamaha engine has no problem spinning out 4 000 thanks and watts to the exclusive "Damper Winding Technology" it is safe to power devices geared up with delicate microcomputer controls. 2013 Yamaha EF4000D DEMONSTRATOR Rugged Power for Home Back-Up or Construction Site Go ahead and power up both 120 and 240 volt devices with this effective and compact generator. Anything from ac system to power drills. Power Equipment Generators ...

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