Author Topic: rear Stop/Tail lights.... Help needed  (Read 2246 times)

Offline InkyPaul

  • Motobrick Curious
  • Posts: 11
rear Stop/Tail lights.... Help needed
« on: March 22, 2017, 09:38:11 PM »
Here goes - my Kbike is almost finished and ready for MOT here in sunny Britain -
all that remains is new tail lights. and to tidy the front light array.
i bought an inexpensive trailer dual tail running/brake light moulded integral 12 v LED combination (groan) Unit to replace the missing OEM unit. since this is a rat project, i discarder the tail moulding as none of the interior tail lights remained and bought a tail tidy. the original harness connector block remains attached to the loomharness and the indicators i bought snapped in and worked right out of the pack.
however. following the owners manual wiring diagram and the lights provided colour coding (white=earth, red=brakes Brown =tail)i run into this outcome -
in the 1st ignition switch position the running light is on (dim) but when the key is turned to position 2 (all live) and started i get full illumination even when the brakes are not in use. ive tried switching the red and brown over, now all i get is the brakes on/off fron and rear switches both working (yay!) but no dimmed "running light"


stated Current drawn at 13.8v is 0.11A for Stop and 0.02A for tail. am i missing something here?
ive seen people use 2 diodes and a resitor to get this to work but by making a 1 into 2 junction as their strips all have 1 live rail (single function leds).
can i do the same thing but with a single diode and resistor inline on the tail light? would i have to add a diode to the other "stop" lights rail?
do i need to add or subtract anything else due to this being 21st century LEDS on a bike built for incandescents?


EDIT ''''''' Ive read up on the BMU disabling process but im loath to get into this part of the bike and do something im not certain will work


  • Londinium
  • '87 K100LT

Tags: