The manual for the Honda EU2000 clearly states this, but you need to be sure you adjust that little circular knob on the Fuel Cap to the operating position or the generator will certainly quit after a few minutes operation.
Outdoor Yard Lighting Attracts Lightning
Well not really attracts lightning, but certainly allows for more pickup of lightning energy.
Last night on our Sunday Night Tech Net (Fauquier County, VA Repeater) a fellow named Bob brought up the topic of proper grounding for his upcoming coax fed 40 meter antenna. During the discussion about common ground points and other relating lightning protection possibilities, he recalled a story.