Honda EU2000i Owner's Manual page 91

3.After refueling, tighten the fuel tank cap until it clicks. Keep the fuel
tank cap vent lever OFF for storage or transport, and ON to run the
generator.
Move the generator at least 10 feet (3 meters) away from the fueling
source and site before starting the engine.
After initial fueling (or anytime the generator is run completely out of
fuel), starting the engine may require additional pulls of the starter grip.
This generator utilizes a vacuum operated fuel pump and may require
additional pulls to draw fuel into the carburetor.
OFF
FUEL TANK CAP VENT LEVER
INITIAL USE INSTRUCTIONS
ON
FUEL TANK CAP
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