KYMCO Downtown 300i ABS, Service Manual

Page: 151 / 263

13. FUEL INJECTION SYSTEM
13-14
Downtown 300i ABS
FUEL PUMP
INSPECTIION
Put the side stand up and the engine stop
switch is at “RUN”
Disconnect the fuel pump/fuel unit
connector.
Connect the multimeter (+) probe to the
Red/Black terminal and the multi-meter (-)
probe to the Green terminal.
Turn the ignition switch to “ON” and
measure the voltage between the terminals.
It should be shown the current battery
voltage for a few seconds.
If there is still battery voltage, replace the
fuel pump.
If there is not any battery voltage, inspect
the following:
●
Fuse B (10 A)
●
Fuel cut-off relay
●
ECU
Measure the resistance between the
Red/Black and Green terminals of the fuel
pump side connector.
Standard (at 20°C/68°F) : 1.9±0.3
Ω
Fuel level sensor inspection
Measure the resistance between the
Yellow/White and Green terminals of the
fuel pump side connector.
Standard (at 20°C/68°F) :
Float at full position 1100±33
Ω
Float at empty position 100±3
Ω
Yellow/White
Green
Full Position
Empty Position