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DT 125 Re : Low Beam Problems


BransdaleBeast
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Hello all. I'm having a problem with my low beam at the moment, any insight would be much appreciated as it's really starting to do my head in.

Basically I have no low beam/dipped lights. Only the side (parking?) light works when switched onto low beam. The full beam is fully operational however.

It all started a week ago or so, after a ride through some real boggy woods where I dropped her a couple of times and knocked my rear indicator off (I've taken them off now). When I got home and turned her off, I had no instrument lights/powevalve operation/starter and the fuse had blown.

So I have replaced the fuse which seems to have fixed everything except the low beam, which still doesn't work??

Fuse is still intact

Bulb works fine for full beam

Have tried fiddling with wires/connectors, no dice

Horn doesn't sound unless engine is running?

I'm not very clued up on electrics could a bad earth be causing this? Most likely I have a corroded connection somewhere I'm thinking...

I haven't posted much on this forum but I've learnt so much from all the people who post on here, so big thanks to everyone for contributing!

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Also " your battery is goosed, thats why horn works when engine run, get the WD40 in the connections,

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I haven't got a multi-meter, yet. Must get one soon they seem to be pretty vital when checking electronic systems.... I'll pick up a new bulb from the garage tomorrow at least that will be another thing ruled out, or maybe it'll fix it completely. Fingers crossed!

As for the battery I was wondering if it was on its way out and how that would affect the system. I thought that since the powervalve was still 'cleaning' on start up and the instrument lights were working that the battery was probably ok. I'll see my mate tomorrow who has a DT as well and try his battery and see what happens.

Cheers guys.

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yeah if the pv is working then there may be a fault with the horn...does it even 'try' to work? why not sustitute your mates horn for a test

anyway, yours is the RE version so if the starter is working then it wont be a faulty battery

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No dipped beam and you haven't checked the bulb..... :eusa_doh:

You could just flip the connections then dip is main etc to be sure.

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Yeah I should of checked the bulb before I posted, I have a feeling its something else though. Since I replaced the fuse, it has worked a couple of times only to stop working as soon as I go offroad again (it hasn't 'fixed' itself for 3 days now though). I'm about to head out now to see my mate and do a few swapsies so hopefully should get to the bottom of it. Next time I'll try to eliminate the obvious before I go harping on asking daft questions!

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Well would you adam and eve it the bulb was buggered! Quite funny really I always assume the worst even when I encounter minor troubles like this. Horn started working again once I cleaned it and replaced it as well. Ironically my full beam indicator has stopped working now... my guess is I need a new bulb... ah well at least I can ride at night now without blinding the sheep on the moors.

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