Hello. Hasn't say hi for long time here, but I do keep in on here.
Yesterday I had a finish installed HID kit on my GTV250.
This is fourth headlight has been replaced. 1st one just another aftermarket halogen, supposedly brighter then OEM, but I don't see much different. 2nd one is high power LED, it say 2400 lumens, but worse than halogen. 3rd one 25W Cree LED, slightly better then other LED but still not enough and Hi/Low not functioning. So now I put it in myself HID Kit and so happy with result.
It has Bi-xenon HID (33W)/halogen (55w) so can pass flashing as normal way, and much far brighter but not that bright as pulled over.
I had a research here for HID kit on GTV couple times, but seem to be none of person has been done by self as DIY. I just share this for here maybe someone need to part of tip.
Installing difficulty is it was pain of butt for figured out one task, otherwise pretty much easygoing.
While I worked on, I did not take any pictures, I wasn't sure will be success or not, now I don't want to take a part out and do it again. So I have to take pictures from already done for try to enough explain.
This is list needed (Pic 1).
1. HID kit, like this
http://www.ebay.com/itm/271392472895?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I purchase this from eBay it was lot of compare and researched before choose this, but doesn't have to be only this model, if you find better one go ahead.
2. 3 different color of 14~16 gages (I think) wires with least 4 feet long. I recycled from striped computer power cable; they came out 3 wires, Wight, Black and Green.
3. One of magic tool, like this heavy duty zip tie, least of 1~1.5 feet long.
4. Some tools, wire cutter, striper and electrical tape or wire sleeve.
5. Some sort of lubrication stuff (can be oil kind or grease)
I ordered 5000K oem white, because I think 3000K too yellow, I would like to have 4300K if available but no choice from there.
First problem was room for ballast box it won't fit in headlight housing, even if I use slim compact ballast, doesn't look like fit either, also most slim compact ballast for HID low light bulb only, which is no bi-xenon/halogen combo.
If you are OK with low light only, it can save few bucks.
So I decide to put in ballast bot to inside of left knee pad area, which means I have to cut HID kit wires and extend from bulb to ballast make different location.
Second problem is HID bulb made with plastic frame and thicker than halogen or LED sheet metal frame, so it is not fit in to Vespa bulb plastic twist clip, I use glue gun for just enough hold bulb in to position so can be remove easily by hand if need it.
The wiring task was hard to figure out, finally find path for wire up this way.
Snap in to zip tie from under the fender here #1 side through out there #2 (pic 2, 3).
And then tape it headlight housing side wires like this way. (Pic 4, 5). Better way to taped as pictures showing, If you taped all three end wires together one spot bundle, then it's too fat to going in that wiring path under fender. Don't rolling over tape too fat, just enough holding to pull back.
Apply lubricate to taped area to wires, but leave one feet from end.(sorry no picture)
Pull back zip tie head carefully make thru wires pull back and leave 1 feet long wires for headlight housing. (Pic 6)
Use wire sleeve cover up from other side wires end (I cleaned lubrication from wires and rolled over electric taped a lot) go thru this hole #3 (pic 7) to out (pic 8-1,8-2) then up to all the way knee pad area, don't be too tight pull, leave inch or two room for wiggling, make sure handle bar twisted left and right free enough, so wires did not get stress.
Now cut HID kit wires about here (pic9).
Leave more length for bulb side so little more easily work on that dinky wires.
Now two separated HID kit wire connect to extension cable both end(pic 10) (pic 11 for example where sleeve or tepe cover) one black extension wire for both black ground wires from HID kit. I use white for HID bulb and green for other red, now connect headlight housing socket, and close covers finish up all projects (Pic 12).
Over roll wiring (Pic 13)
Pic 13 was not my vespa, Pic ture from google. but I pick from MV.
I'm not a professional this kind installer, so I might make mistake or not surely to do. So my way may be not a perfect way, If you guys find any of didn't seems right, please point me, I will glad to adopted idea.
And sorry my ingrish.