FUEL SYSTEM (DFI) 3-47

• Open the fuel tank cap [A] to lower the pressure in the tank.

• Be sure to place a piece of cloth around the fuel supply pipe of the fuel pump.

• Remove the fuel hose from the fuel pump (see Fuel Pump Removal).

A warning

Be prepared for fuel spillage; any spilled fuel must be completely wiped up immediately.

When the fuel hose is disconnected, fuel spills out from the hose and the pipe because of residual pressure. Cover the hose connection with a piece of clean cloth to prevent fuel spillage.

• Connect the prepared fuel hose [A] to the fuel supply pipe of the fuel pump.

• Secure the fuel hose with a clamp.

• Insert the fuel hose into the measuring cylinder [B],

A warning

Wipe off spilled out fuel immediately.

Be sure to hold the measuring cylinder vertical.

• Close the fuel tank cap.

• With the engine stopped, turn the ignition switch ON. The fuel pump should operate for 3 seconds, and then should stop.

CAUTION

Do not drive the fuel pump 3 seconds or more with­out the fuel in the fuel tank. If the fuel pump is driven without the fuel, it may be damaged. ^•

• Measure the discharge for 3 seconds.

O Repeat this operation several times.

Amount of Fuel Flow

Standard: 67 mL or more for 3 seconds

• If the fuel flow is much less than the specified, check the following:

Battery Condition (see Electrical System chapter)

• After inspection, connect the fuel hoses, (see Fuel Tank Installation).

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Fuel Pump Removal

CAUTION

Never drop the fuel pump, especially on a hard sur­face. Such a shock to the pump can damage it.

A warning

Gasoline is extremely flammable and can be explo­sive under certain conditions. Make sure the area is well-ventilated and free from any source of flame or sparks; this includes any appliance with a pilot light. Do not smoke. Turn the ignition switch OFF. Disconnect the battery (-) terminal.

To make fuel spillage minimum, draw the fuel out from the fuel tank when the engine is cold. Be prepared for fuel spillage; any spilled fuel must be completely wiped up immediately. ^•

• Draw the fuel out from the fuel tank with a commercially available electric pump.

• Remove the fuel tank (see Fuel Tank Removal).

o Be careful of fuel spillage from the fuel tank since fuel still remains in the fuel tank and fuel pump. Plug the fuel pipe of the fuel tank.

• Turn the fuel tank upside down.

• Unscrew the fuel pump bolts [A], and take out the fuel pump assembly [B] and gasket.

• Discard the fuel pump gasket.

Fuel Pump Installation

• Remove dirt or dust from the fuel pump [A] by lightly ap­plying compressed air.

• Replace the fuel pump gasket with a new one.

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FUEL SYSTEM (DFI) 3-49

• Check that the fuel pump terminal [A] and band [B] are in place.

[C] Front

• Apply a non-permanent locking agent to the threads of the fuel pump bolts.

• Tighten the fuel pump bolts to a snug fit following the tight­ening sequence shown.

• Following the tightening sequence, tighten the pump bolts to the specified torque.

Torque - Fuel Pump Bolts: 9.8 N m (1.0 kgf-m, 87 in-lb)

• Tighten the pump bolts again to check the tightness in the order shown.

Operation Inspection

NOTE

O Be sure the battery is fully charged.

• Turn the ignition switch ON and make sure that the fuel pump operates (make light sounds) for 3 seconds, and then stops.

• Turn the ignition switch OFF. ■

• If the pump does not work as described above, inspect the operating voltage.

Operating Voltage Inspection

NOTE

O Be sure the battery is fully charged.

• Turn the ignition switch OFF.

• Remove the fuel tank bolts and lift up the fuel tank. ^•

• Connect the hand tester (25 V DC) to the connector [A], with needle adapter set.

Pump Operating Voltage at Pump Connections to Pump Connectors Tester (+) -> Y/R Lead

Tester (-) -> BK/W Lead