Removing The Fuel Tank; Removing The Fuel Pump; Checking The Fuel Pump Body; Installing The Fuel Pump - Yamaha UMAX Service Manual

REMOVING THE FUEL TANK

1. Extract the fuel in the fuel tank through the
fuel tank cap with a pump.
2. Remove:
• Fuel hose
WARNING
Cover fuel hose connections with a cloth
when disconnecting them. Residual pres-
sure in the fuel lines could cause fuel to
spurt out when removing the hose.
NOTICE
Although the fuel has been removed from
the fuel tank, be careful when removing the
fuel hose, since there may be fuel remaining
in it.
TIP
• To disconnect the fuel hose, slide the fuel hose
connector cover "1" on the end of the hose in
direction of the arrow shown, press the two but-
tons "2" on the sides of the connector, and then
disconnect the hose.
• Before removing the hose, place a few rags in
the area under where it will be removed.

REMOVING THE FUEL PUMP

1. Remove:
• Fuel pump bracket
• Fuel pump
• Fuel pump gasket
NOTICE
• Do not drop the fuel pump or give it a
strong shock.
• Do not touch the base section of the fuel
sender.

CHECKING THE FUEL PUMP BODY

1. Check:
• Fuel pump body
Obstruction → Clean.
Cracks/damage → Replace the fuel pump.

INSTALLING THE FUEL PUMP

1. Install:
• Fuel pump gasket "1"
TIP
• Always use a new fuel pump gasket.
• Install the fuel pump gasket with the lip side "a"
facing upward.
New 1
2. Install:
• Fuel pump
• Fuel pump bracket
Fuel pump nut
7 N·m (0.7 kgf·m, 5.2 lb·ft)
TIP
• Do not damage the installation surfaces of the
fuel tank when installing the fuel pump.
• Install the fuel pump in the direction shown in
the illustration.
• Install the fuel pump bracket by aligning the
projections "a" on the fuel pump with the pro-
jection "b" on the fuel tank.
• Tighten the nuts to specification in the proper
tightening sequence as shown.
3
FWD
2

INSTALLING THE FUEL TANK

1. Tighten:
• Fuel tank bolts
• Fuel tank retainer bolts
6-2
FUEL TANK
New
a
5
a
1
4
a
b
6
1