Sym MAXSYM 400i - Fuel Unit

17. Electrical System
17-19
Fuel Unit
Open the seat.
Remove the luggage box.
Remove the rear carrier.
Remove right & left side cover.
Remove the body cover
Remove the floor panel.
Disconnect the coupler of the fuel unit.
Loosen 4 bolts from fuel unit and remove it.
Caution
 Great care shall be taken not to damage or
bend the float arm of the gauge.
When the float arm shifts to the F position or the E
position, the resistance measured shall be as
follows:
Position
Resistance
E (Empty)
90~100 
F (Full)
4~8 
Connect the wiring to the fuel unit and the
ohmmeter as shown.
Connect the fuel unit coupler to the wire harness.
Turn on the main switch.
Move the float arm to verify the proper position of
the fuel gauge needle indicates.
Arm Position
Needle Position
Up (Full)
F (Full)
Down (Empty)
E (Empty)
Caution
 While conducting the test, turn on the direction
indicator lamp to make sure that the battery is
in serviceable condition.
Fuel Pump and unit
Full
Empty
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Fuel unit coupler