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Old 03-13-2011, 09:11 PM   #1 (permalink)
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2003 ST -- Headlight mods

I've done some searching and it has been difficult to separate out pre-2005 info with newer Sprints. I have few questions, and sorry to rehash stuff that already has had a lot of threads:

Headlight relay mod.
  1. My understanding is this will fix the issue of one light being used for low beam and another for the other beam. Seems silly to have two lights and use only one at a time. I wonder, though, are the bulbs different? If one light was designed to be the high-beam, would Triumph really put a dual-beam bulb in there? If that's the case, this mod would simply make your low and high beams on at the same time.
  2. If there are indeed low/hi bulbs in each lamp, can someone post the link to the mod?

HID lights
  1. Is the above relay mod required before doing an HID upgrade?
  2. For pre-2005 Sprints, does this kit do either high beam or low beam or both beams? The website sorta indicates that it is makes both high and low beams HID lights.
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Old 03-14-2011, 12:18 AM   #2 (permalink)
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I wasan't aware the ST..I have the almost identical RS used a one light for hi one for dipped??
Are you in Washington Tyne and Wear, or Washington DC???

I only know the US models have both low and hi beam bulbs lit together, ( well mine certainly does) and on at all times,save for engine starting..........
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Old 03-14-2011, 12:20 AM   #3 (permalink)
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PS If you can source Osram Nightbreakers, they have both hi low filaments in each bulb, and are very good...............
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Old 03-14-2011, 12:56 AM   #4 (permalink)
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I assume that the "Washington" in your location is either the US state or the District of Columbia? If so, you should already have both relays installed, and both lights should always be on whether on high or low beam, with no off switch. The lamps (bulbs) in question are dual-filament H4 types; low beam filaments in both lamps light up for low beam and high beam filaments in both lamps light up for high beam.

The headlight relay mod is for certain non-US markets where only one lamp is lit under certain conditions. If you have a US bike and only have one lamp lit at a time, you most likely have a burnt out filament in that lamp and need to replace it.

As far as HIDs go, the headlight cutout relay (totally different from the relay mod relay) interferes with them to some extent. HIDs need to warm up, and so don't like being turned on, then shut off while the motor cranks, then turned on again. My understanding is that it causes excess wear on the ballasts; it certainly doesn't prevent them being fitted.

Your link to DDM has pop-up menus for several different options, so I'm not sure which you were looking at. The kind you want for a 955 is the dual light setup with H4 hi/lo lamps.

Cheers, HTH,
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Old 03-14-2011, 09:05 AM   #5 (permalink)
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Yes, I'm in Washington state. So it looks like a low-beam filament blown in one light and a high-beam blown in the other. Easy enough to replace the current bulbs while I contemplate the HID upgrade then.

Thanks.
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Old 03-15-2011, 09:45 AM   #6 (permalink)
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As i understand it 1999 (and i think 2000) Sprints had both lights enabled as standard, later sprints needed the headlight mod. Stupid idea to not use them both all the time. The lights are not amazing on my 99 with both of them on!

That said, the h4 philips xtreme bubs are very good for a standard bulb.
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Old 03-15-2011, 12:09 PM   #7 (permalink)
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I have an '03 Sprint and I've fit the DDM Tuning HIDs. I originally planned to do the "rotational sensor" mod so that they wouldn't light unless the motor was running, but they work fine without it. You will want to upgrade the center running (i.e. cylops) light to a white LED if you fit the HIDs. Otherwise the yellow incandescent light really looks anemic. I also fit LED tail/brake lights and turn signals, which lowers the demand on the electrical system. I also highly recommend DEcosse's regulator/rectifier and associated wiring harness upgrade.
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Old 03-16-2011, 03:24 PM   #8 (permalink)
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I suppose I should repeat here that it has been my experience that the headlamps, as set at the factory, are aimed poorly.

I've got a lengthier post here somewhere, but basically, if you re-aim the highbeams to where the top of the beam is the same height as the headlamp, you'll find both the Hi and Lo work a lot better.

I had done that on my 2000, and then again as soon as I got my new 2003 home. Been running stock ever since.
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Old 03-16-2011, 04:15 PM   #9 (permalink)
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Ive also installed the DDM Tuning HIDs, they were dirt cheap and work fantastic. They are really bright. I think I got the 6K ones. Not too blue, mostly a glaring white with just a small tint of blue.

As long as you are redoing them I would highly recommend them, Ive been running for over a year with them with no problems.
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Old 04-03-2011, 03:04 PM   #10 (permalink)
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Quote:
Originally Posted by Coroja View Post
I have an '03 Sprint and I've fit the DDM Tuning HIDs....
Which kit did you get?
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