FUTABA Big SkyLeaf Instruction Manual page 6

Gasoline precautions
DANGER
Gasoline is highly flammable and explosive, toxic
and extremely dangerous, so be careful when handling
it. Carefully read the manual of the gasoline engine and
follow it.
Always keep fire extinguishers near the fuel and plane.
Remove fuel from the plane when not in flight,
remember that there is a danger of igniting remaining
gas.
Remove the fuel and battery from the plane, and keep
it in a place with no fire.
Because the plane is easy to burn, be aware of the fire.
To charge the battery, remove it from the plane and do
it away.
Fuel tank, fuel pipe, fuel pump etc. must be used
exclusively for gasoline engine. Do not use for glow
engines.
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