Suzuki AN650 2002 - Fuel Pump Inspection; Fuel Pump Relay Inspection

7-6 FUEL SYSTEM AND THROTTLE BODY
FUEL PUMP INSPECTION
Turn the ignition switch ON and check that the fuel pump oper-
ates for few seconds.
If the fuel pump motor does not make operating sound, replace
the fuel pump assembly or inspect the fuel pump relay and tip
over sensor.
FUEL DISCHARGE AMOUNT INSPECTION
"
• Remove the front box. (9-18)
• Disconnect the fuel feed hose from the fuel delivery pipe.
• Place the measuring cylinder and insert the fuel feed hose
end into the measuring cylinder.
• Disconnect the ECM lead wire coupler.
• With the lead wire’s fastener
A unlocked, pull out the power
source lead wire (Yellow with red tracer)
1.
• Apply 12 volts to the fuel pump for 30 seconds and measure
the amount of fuel discharged.
If the pump does not discharge the amount specified, it means
that the fuel pump is defective or that the fuel filter is clogged.
 Fuel discharge amount: More than 900 ml/30 sec.
(30.4/31.7 US/Imp oz)/30 sec.
NOTE:
The battery must be in fully charged condition.
FUEL PUMP RELAY INSPECTION
Fuel pump relay is located behind the front panel.
• Remove the front panel.
• Remove the fuel pump relay.
First, check the insulation between
1 and 2 terminals with
pocket tester. Then apply 12 volts to
3 and 4 terminals, + to
3 and - to 4, and check the continuity between 1 and 2.
If there is no continuity, replace it with a new one.
Gasoline is highly flammable and explosive. Keep
heat, spark and flame away.
Battery