Removing The Fuel Hose; Checking The Fuel Injector; Checking The Throttle Body; Installing The Intake Manifold - Yamaha MBK XMAX 2014 Service Manual

EAS2DL1001

REMOVING THE FUEL HOSE

1. Extract the fuel in the fuel tank through the
fuel tank filler hole with a pump.
2. Remove:
• Fuel hose connector cover "1"
3. Disconnect:
• Fuel hose "2"
ECA2DL1006
NOTICE
• Be sure to disconnect the fuel hose by
hand. Do not forcefully disconnect the
hose with tools.
• Although the fuel has been removed from
the fuel tank, be careful when removing the
fuel hose, since there may be fuel remain-
ing in it.
• Do not disconnect the fuel hose from the
fuel hose connector. Disconnect the con-
nector from the fuel pump.
TIP
Before removing the hose, place a few rags in
the area under where it will be removed.
EAS26980

CHECKING THE FUEL INJECTOR

1. Check:
• Fuel injector
Damage → Replace.
EAS26990

CHECKING THE THROTTLE BODY

1. Check:
• Throttle body
Cracks/damage → Replace the throttle body.
2. Check:
• Fuel passages
Obstructions → Clean.
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a. Wash the throttle body in a petroleum-based
solvent.
Do not use any caustic carburetor cleaning
solution.
1
2
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b. Blow out all of the passages with compressed
air.
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3. Check:
• Piston valve
Damage/scratches/wear → Replace.
• Piston valve diaphragm
Cracks/tears → Replace.
4. Check:
• Vacuum chamber cover
• Piston valve spring
Cracks/damage → Replace.
5. Check:
• Piston valve movement
Insert the piston valve into the throttle body
and move it up and down.
Tightness → Replace the piston valve.
EAS2DL1002

INSTALLING THE INTAKE MANIFOLD

1. Install:
• Intake manifold joint "1"
TIP
Make sure that the recess "a" in the intake man-
ifold joint is aligned with the thermostat cover.
EAS2DL1003

INSTALLING THE FUEL HOSE

▼▼▼
1. Install:
• Fuel hose
• Fuel hose connector cover
7-6
THROTTLE BODY
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1
a
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