Honda Pioneer 1000 2017 Owner's Manual page 154

Fuel tank capacity:
7.9 US gal (30 ℓ)
When there is only one segment left in the fuel gauge (page 28), fuel
will be low and you should refuel as soon as possible.
Refer to Safety Precautions on page 123.
RIGHT SIDE
bottom of filler neck
1. Open the right side door (page 54).
2. Turn the fuel fill cap counterclockwise.
3. Add fuel until the level reaches the bottom of the filler neck.
Avoid over filling the tank. There should be no fuel in the filler
neck.
fuel fill cap