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YAMAHA DT 125 LC 1986 DO I HAVE TO HAVE A BATTERY ON MY BIKE

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jasonDT
Two Stroke Sniffer



Joined: 22 Feb 2011
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PostPosted: 20:11 - 04 Mar 2011    Post subject: YAMAHA DT 125 LC 1986 DO I HAVE TO HAVE A BATTERY ON MY BIKE Reply with quote
hi IVE JUST BOUGHT MY YAMAHA DT 125 LC 1986
IM HAVING A FEW PROBLEMS WITH THE BIKE THE HEAD GASKET WENT ON IT MENDED THAT NOW PROBLEMS WITH THE INDICATORS WHEN I REV THE BIKE THE INDERCATORS WORK SO DOSE THE HORN BUT ON TICK OVER HORN WONT WORK OR INDICATORS WONT FLASH THERE ISNT A BATTERY ON THE BIKE COULD THIS BE THE PROBLEM THE MAIN LIGHTS ON BIKE BACK AND FRONT WORK FINE ON TICK OVER ON THE YAMAHA IT SAIDS THE BIKES A 10VOLT BUT PEOPLE HAVE SAID ITS A 12VOLT SO I HAVENT A CLUE AND WHAT VOLTAGE BATTERY DO I NEED I HOPE SOMEONE OUT THERE WILL BE KIND ANOUTH TO HELP ME FIND THIS PROBLEM I HAVE
KIND REGARDS
JAY.
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finpos
World Chat Champion



Joined: 13 Sep 2005
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PostPosted: 20:19 - 04 Mar 2011    Post subject: Reply with quote
Never heard of 10v, so I'd say 12v as well. Will need battery for lights at idle. Bike may have been fitted with a big capacitor in place of battery - look for a big cylinder with two fat wires.
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binge
Emo Kiddy



Joined: 02 Jul 2004
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PostPosted: 20:30 - 04 Mar 2011    Post subject: Reply with quote
On all of my pit bikes, I always remove the battery, and run minimal electrics direct from the stator plate.

On the DT125, it may be similar to the TZR125, where it needs a battery. It's a strange one, but they have to have one otherwise it belts out like 16volts at low revs, then the voltage drops at high revs to under 12v.

Very strange setup, as soon as I added a battery, the problem was solved.





Ben
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chris-red
Have you considered a TDM?



Joined: 21 Sep 2005
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PostPosted: 20:32 - 04 Mar 2011    Post subject: Reply with quote
Yes you need a battery, it will be 12v not 10v.

Get batteries here https://www.wemoto.com/bikes/Yamaha/DT_125_LC3_Type_35A/86-88/
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Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
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jasonDT
Two Stroke Sniffer



Joined: 22 Feb 2011
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PostPosted: 20:38 - 04 Mar 2011    Post subject: Reply with quote
finpos wrote:
Never heard of 10v, so I'd say 12v as well. Will need battery for lights at idle. Bike may have been fitted with a big capacitor in place of battery - look for a big cylinder with two fat wires.

HI THANKS FOR THE REPLY
THE BIKE CAME WITH A BATTERY ON THE BIKE BUT DIDNT LOOK ANY GOOD I PUT THE NEW FLASHER ON ITS THE BLEEPING ONE WHERE THE BOX BLEEPS WHEN INDERCATORS FLASH I CAN HERE THE BLEEP AND THE INDERCATORS FLASH AS I REV THE BIKE NO CAPACITOR ON THE BIKE IT WAS ALL WORKING FINE AND ALL STARTED TO PLAY UP WHEN THE BIKE IS BEING REVED IT ALL WOARKS FINE EVEN THE HORN WORKS ON TICK OVER THE INDERCATORS STAY ON AND THE HORN STOPS WORKING
CHEERS
JAY
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jasonDT
Two Stroke Sniffer



Joined: 22 Feb 2011
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PostPosted: 20:41 - 04 Mar 2011    Post subject: Reply with quote
chris-red wrote:
Yes you need a battery, it will be 12v not 10v.

Get batteries here https://www.wemoto.com/bikes/Yamaha/DT_125_LC3_Type_35A/86-88/

IS THIS MY PROBLEM THEN (BATTERY) WHEN I REV BIKE INDERCATORS FLASH AND THE HORN WORKS BUT TICK OVER HORN STOPS INDERCATORS STOP FLASHING BUT ON TICK OVER THE FRONT HEAD LIGHT WORKS FINE SO DOSE THE BACK LIGHT
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monkeymanjaso...
Borekit Bruiser



Joined: 04 Mar 2011
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PostPosted: 21:06 - 04 Mar 2011    Post subject: Reply with quote
Its deffinatly the battery...U need one....
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jasonDT
Two Stroke Sniffer



Joined: 22 Feb 2011
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PostPosted: 21:09 - 04 Mar 2011    Post subject: Reply with quote
monkeymanjason wrote:
Its deffinatly the battery...U need one....

THANK YOU M8
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jimspeed
World Chat Champion



Joined: 05 Mar 2010
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PostPosted: 22:46 - 04 Mar 2011    Post subject: Reply with quote
yes fit a battery and it will all work, at tickover the engine will struggle to produce enough electric to run teh indicators or horn which is why they work when it revs up Thumbs Up
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dextersaurus
World Chat Champion



Joined: 25 Mar 2009
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PostPosted: 23:56 - 04 Mar 2011    Post subject: Reply with quote
Yes you need a battery.

Also,

https://www.meh.ro/original/2010_03/meh.ro1318.jpg
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Truzo
Nova Slayer



Joined: 03 Sep 2010
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PostPosted: 16:05 - 05 Mar 2011    Post subject: Reply with quote
I have the workshop manual for this bike and yes, you need a 12v battery.
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monkeymanjaso...
Borekit Bruiser



Joined: 04 Mar 2011
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PostPosted: 20:34 - 05 Mar 2011    Post subject: Reply with quote
If that dont work then change the flasher unit...And your bike is a 6v not 12v....
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Old Thread Alert!

The last post was made 15 years, 2 days ago. Instead of replying here, would creating a new thread be more useful?
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