Removing The Fuel Tank; Removing The Fuel Pump; Checking The Fuel Pump Body; Installing The Fuel Pump - Yamaha YZ450F(E) 2014 Owner's Service Manual

REMOVING THE FUEL TANK

EAS1SL1306
1. Extract the fuel in the fuel tank through the
fuel tank cap with a pump.
2. Remove:
• Fuel hose coupler
EWA23P1001
WARNING
Cover the fuel hose connection with a cloth
when disconnecting it. This is because re-
sidual pressure in the fuel hose could cause
fuel to spurt out when the hose is removed.
ECA23P1090
NOTICE
Make sure that the fuel hose is disconnect-
ed by hand. Do not forcefully disconnect the
hose with tools.
TIP
• To disconnect the fuel hose from the fuel tank,
remove the fuel hose connector holder "a",
and then slide the fuel hose connector cover.
• To remove the fuel hose from the fuel rail,
slide the fuel hose connector cover "1" on the
end of the hose in the direction of the arrow
shown, press the two buttons "2" on the sides
of the connector, and then remove the hose.
• Before removing the hose, place a few cloths
in the area under where it will be removed.
• To prevent sand, dust, and other foreign ma-
terials from entering the fuel pump, install the
included fuel hose joint cover 1 "3" and the
fuel hose joint cover 2 "4" onto the disconnect-
ed fuel hose and the fuel pump.
a
2
1
3. Remove:
• Side cover (left/right)
• Seat
• Air scoop (left/right)
• Fuel tank
TIP
Do not set the fuel tank down on the installation
surface of the fuel pump. Be sure to lean the
fuel tank against a wall or the like.

REMOVING THE FUEL PUMP

EAS1SL1307
1. Remove:
• Fuel pump
ECA14720
NOTICE
Do not drop the fuel pump or give it a strong
shock.

CHECKING THE FUEL PUMP BODY

EAS1SL1308
1. Check:
• Fuel pump body
Obstructions  Clean.
Cracks/damage  Replace the fuel pump
assembly.

INSTALLING THE FUEL PUMP

EAS1SL1309
1. Install:
• Fuel pump gasket
• Fuel pump
• Fuel pump bracket
Fuel pump bolts
4.0 Nm (0.40 m·kgf, 2.9 ft·lbf)
TIP
• Take care not to damage the installation sur-
faces of the fuel tank.
• Always use a new fuel pump gasket.
• Install the lip on the fuel pump gasket upward.
• Install the fuel pump as shown in the figure.
• Align the projection "a" on the fuel pump with
the slot "b" in the fuel pump bracket.
• Tighten the fuel pump bolts in the proper tight-
ening sequence as shown.
7-2
FUEL TANK
4
3
New