DT 125 R bad headlight.
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Took my DT out the other night and on unlit roads couldn't see at all and would of been brighter with a candle. When braking headlight goes nearly out even with clutch in and revving it high, battery is new and all outputs from engine exact voltage meant to be. Taped a voltmeter to handlebar so could see whats happening with lights on and revving past 10,000 it reads 14.8v. Just cruising at low revs with lights on reads around 12.4v so don't know why headlight is so bad.
https://www.youtube.com/watch?v=aCKiCBGyKy4
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I've used Osram bulbs in the past to get a better result. It could be worth cleaning all the contacts checking the earths and putting LED bulbs in the other lights to ensure you get all the limited power to the front end. I've done the latter with my 1952 Triumph running 6v and a dynamo and it's helped loads.
Lastly you can get adaptor rings to run H4 bulbs in the front, this is helpful as you can put a H4 halogen in.
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As said check the earth to the headlamp, even run an independent earth to it, old looms suffer badly on the earthing side. Osram nightbreaker for me
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Yeah, my first thoughts were Earths, but I wasn't really qualified to say.
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or run a led bulb set up as had the same problem on mine so converted all bulbs to led and thats worked a lot better for me
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Bought these 100/90w Super White Xenon https://www.ebay.co.uk/itm/2x-HB12-410-P45T-100-90w-Super-White-Xenon-Headlight-Bulbs-12v/191434589033
Didn,t really make much difference so changed my battery to a 50amp 4S Lipo pack
from a radio controlled car and half the size of DT battery. Although rated as 14.8volt fully charged they are 16.8 volts so added a resistor and a diode to make 12.8volt.
Then got a 12volt relay used for car spotlamps etc and ran live from battery to relay
with a 25amp inline fuse, now my original live for the high and low beam are just trigger wires for the relay.
So when switched on now the bulb gets it's power direct from my 50amp Lipo pack and now my headlight is insane and stood in front of bike now can't look direct at the light as way too bright. Also now no longer have to start the bike to run headlight and can sit forever with headlight on now just turning on my ignition due to the 50amp hard case Lipo pack and lights unlit roads so bright and the beam can go miles now and shines brighter and further than my car spotlamps.
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@2stroketerry Any pics of your handywork dude???
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@NINJA it's raining where I am or would do a video, I do have a spare relay and batteries etc so will wire together when I've had my tea and turn my kitchen light out and switch on, so bright can't look directly at the bulb or just see a black spot for ages everywhere you look.
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@2stroketerry COOL - Hallucinogenic lights eh???
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@2stroketerry my purple halos worked a treat
