Removing The Fuel Hose; Checking The Fuel Injector; Installing The Fuel Injector; Installing The Fuel Hose - Yamaha MBK X-MAX 300 2017 Service Manual

EAS31250

REMOVING THE FUEL HOSE

1. Disconnect:
• Fuel hose
EWA17610
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 hoses.
ECA20020
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 remove the fuel hose from the fuel injector,
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.
• Remove the fuel hose manually without using
any tools.
• Before removing the hose, place a few rags in
the area under where it will be removed.
EAS31251

CHECKING THE FUEL INJECTOR

1. Check:
• Injector
Obstruction → Replace and check the fuel
pump/fuel supply system.
Deposit → Replace.
Damage → Replace.
2. Check:
• Injector resistance
Refer to "CHECKING THE FUEL INJEC-
TOR" on page 8-137.
EAS31617

INSTALLING THE FUEL INJECTOR

1. Install:
• O-ring "1"
(to the fuel injector)
• Fuel injector "2"
TIP
• Lubricate the O-ring with engine oil.
• Align the projection "a" on the fuel injector with
the hole "b" in the intake manifold.
EAS31253

INSTALLING THE FUEL HOSE

1. Install:
• Fuel hose
ECA17500
NOTICE
When installing the fuel hose, make sure that
it is securely connected, and that the fuel
1
hose connector cover on the fuel hose is in
the correct position, otherwise the fuel hose
will not be properly installed.
2
TIP
• Install the fuel hose securely onto the fuel in-
jector until a distinct "click" is heard.
• To install the fuel hose onto the fuel injector,
slide the fuel hose connector cover "1" on the
end of the hose in the direction of the arrow
shown.
7-9
FUEL INJECTOR
New
Fuel injector bolt
12 N·m (1.2 kgf·m, 8.9 lb·ft)
a
b
2
1
New
1