Honda TRX450ER Owner's Manual page 99

Fuel
Fuel Capacity
Fuel tank capacity, including reserve:
10.3 (2.72 US gal , 2.27 Imp gal)
Reserve capacity:
3.0 (0.79 US gal , 0.66 Imp gal)
The tank should be refilled as soon as possible after switching to reserve,
and the fuel valve should be returned to the ON position after refueling
to avoid running out of fuel with no reserve.
Refueling Procedure
Refer to Saf ety Precautions
(3)
(1) fuel fill cap
(2) breather tube
90 Servicing Your Honda
on page 77 .
(2)
(1)
(3) handlebar cover hole
(4) filler neck
(4)