Hi, The headlamps on my Arqin 125 scooter (2007 model) have rusted - the connectors / wiring. Is there some way to get replacement headlights - or rig some system up. Everything else is good with scooter,so would hate this to be the reaosn to dump it !

Do you know how to do basic automotive electrical testing ?

Headlamps Inoperative - Low Beams

Disconnect the headlamp switch.
Turn the headlamp dimmer switch to the LOW position.
Using a test light, frontprobe between the headlamp switch harness connector terminal D to ground.
Does the test light illuminate? YES - NO ?

2
Using a test light, probe between the headlamp switch harness connector terminal D to ground.
Does the test light illuminate?
--
YES - Go to Step 3
NO - Go to Step 4
3
Replace the headlamp switch. Refer to Headlamp Switch Replacement .
Has the repair been made?
--
Go to Headlight System Check
--
4
Repair a poor connection or an open in circuit 1750 between the headlamp switch and the harness connector terminal A and G201.
Has the repair been made?
--
Go to Headlight System Check
--
5
Reconnect the headlamp switch.
Using a test light, backprobe between connector C201 terminal A3 and ground.
Does the test light illuminate?
--
Go to Step 6
Go to Step 7
6
Repair a poor connection or an open in circuit 10 between the harness connector C201 terminal A3 and S221.
Has the repair been made?
--
Go to Headlight System Check
--
7
Using a test light, backprobe between connector C201 terminal A2 and ground.
Does the test light illuminate?
--
Go to Step 8
Go to Step 9
8
Replace the headlamp dimmer switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle .
Has the repair been made?
--
Go to Headlight System Check
--
9
Using a test light, backprobe between the underhood accessory wiring junction block harness connector C2 terminal F10 to ground.
Does the test light illuminate?
--
Go to Step 11
Go to Step 10
10
Replace the underhood accessory wiring junction block. Refer to Accessory Wiring Junction Block Replacement .
Has the repair been made?
--
Go to Headlight System Check
--
11
Repair a poor connection or an open in circuit 1201 between the underhood accessory wiring junction block harness connector C2 terminal F10 and connector C201 terminal A2.
Has the repair been made?
--
Go to Headlight

Wow, that car is rather old - from before the time when replaceable headlight bulb capsules were allowed. Removing the headlamp should be easy unless the screws are too rusted to remove.
Steps:
1. Unplug the electrical connector from the back of the bulb (in some cases this might be easier as the last step after the headlamp is removed)
2. Remove the trim around the headlamps being careful not to turn the screws in the headlight adjustment holes.
3. Remove the ring that holds the headlamp in place usually held in place by two or three screws. Again, check to make sure you are not turning the headlight aim adjustment screws.
4. The headlamp should come out. Since this car was made when sealed beam headlights were required, the entire assembly gets replaced.
I believe the replacement low-beam headlamp for your car is H4656. Amazon com Sylvania H4656 Rectangular Halogen Headlight Bulb Low Beam...

i got owners manual but no service manual.
where is service manual ?

To replace a headlamp on a Saturn Outlook you need to access it via the wheel well. So jack up the car and remove the front tire. You'll see a collection of phillips head trim screws and plastic snap in panel connectors holding the plastic wheel well in place. Remove the screws and snap in connectors. To remove the connectors, pry the center button up with a small screwdriver. One it's up the whole connector should pop free.
Remove the wheel well.
Turn the black plastic cap on the back of the headlamp assembly 1/4 turn counterclockwise and it should come free. Now the lamp wiring and connector should be visible. Turn the lamp ~90 degrees and it should pop free. Test the bulb. More people have problems with the wiring connection and the bulb is usually OK.

Cutting the wire will do. My Mio also have a HID any that's what we did (cutting one wire). But you can also try alternative like installing a fast charger. So you can charge up your battery fast as you use your HID.

No problems encountered with my HID using the cutting methode.

Operate the dimmer switch--does one beam come on? Check inside the headlight shell and examine the wiring from the lamp socket into the handlebar and main harness wiring. If individual connectors, check that the colors match at each connector. If you can't find any problem, then the wiring is mis-connected. Make sure the lamp socket is connected to ground.