Author Topic: Dual Headlights  (Read 2929 times)

Offline Freccia

  • Curious
  • Posts: 3
Dual Headlights
« on: March 20, 2016, 04:03:37 PM »
Hi- new here, so pardon any faux pax. I know much of what I post will be offensive to the "purists", but after lurking for a while (and gleening a lot of great info) I felt compelled to ask a few questions. I'm building a severely stripped down severely rat K100, and have scavenged some parts from a wrecked FZR 600. I mounted the FZR's dual headlights on the brick, installed an Odyssee P680 battery, and some aftermarket turn signals (in order to get it street legal enough to get it out for a ride). After a couple of push starts, and repeated trickle charging, I came to the realisation that I was drawing more power than charging. Voltage reading at a high idle was around 11.8V. With some goofing around (unplugging one of the headlights) I was able to determine that it was the second headlight that was causing the excessive draw. With one headlight, the voltage comes back up to a reasonable ~13.5V.

My question here is do I need a high output alternator, relays of some sort, LEDs (instead of the halogen bulbs from the FZR)?

I've attached a couple of images- purists, please go easy on me  ;-)  PS: images don;t pass "security" checks, so later, I guess.
  • Hudson, NY, USA
  • '85 K100 Rat

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 4475
Re: Dual Headlights
« Reply #1 on: March 20, 2016, 05:08:18 PM »
 As per Laitch you need to reduce the size of your images, once you do that they will download.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline TimTyler

  • Adrninistrator
  • ^ Quintessential Motobricker
  • Posts: 1884
Re: Dual Headlights
« Reply #2 on: March 20, 2016, 05:29:31 PM »
At idle you should a tad over 12v at the battery. At 2krpm you should have over 13v at the battery since the alternator is working.

I'd check your alternator brushes which might be worn.

Have a look at this post: http://www.motobrick.com/index.php/topic,1955.msg10451.html#msg10451

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