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Author Topic: rewiring motorcycle clocks  (Read 2659 times)
merv
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« on: February 24, 2018, 11:52:41 PM »

I need help.
I'm changing the clocks on the st1100 to a completely different set.The st1100 ones have a left and a right turn signal idiot lights built into the cluster. The new set has only one turn signal idiot light built in. Would any one know how i can wire the new set up so when i use the left  indicator the idiot light would flash and when i use the right indicator the idiot light would flash. I can get it to flash by using one or the other st1100 one fitted to it but when i try to connect the two to operate the idiot light all the indicators flash like hazards. Can any one help.
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
dr big750
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« Reply #1 on: February 25, 2018, 02:48:26 AM »

Merv, try not using a negative earth, feed the bulb with positive power from left and earth with positive power from the right, only works with a bulb, not led, make sure bulb holder is not able to touch negative, will work as a bulb can be fed both ways, and will ground through the unused circuit.
http://i509.photobucket.com/albums/s336/dr-big750/Screenshot_20180225-194001_zpsv5scykal.png
rewiring motorcycle clocks

Added on a pic, hope this makes it a little clearer.
« Last Edit: February 25, 2018, 11:52:30 AM by dr big750 » Logged
paulywombats
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« Reply #2 on: February 25, 2018, 04:19:32 AM »

This may help Merv
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merv
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« Reply #3 on: February 25, 2018, 05:42:49 PM »

Now sorted thanks to the help from this site, i followed what dr big750 advised and it worked
 
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
stinkey
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I can't stop building stuff ?,but I'm slowing down


« Reply #4 on: February 25, 2018, 07:21:03 PM »

Jeez you was lucky? Nobody helped me ? Too bloody grumpy most like ? Grin
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minimutly
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« Reply #5 on: February 25, 2018, 08:07:26 PM »

While an indicator lamp between the indicator feeds will work, the right way to do it, and one that will work with leds, is to use a pair of diodes, the anodes to the lamps, with the cathodes connected together feeding the indicator. This stops the backfeed between one side and the other.
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merv
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« Reply #6 on: February 26, 2018, 05:20:48 PM »

Sorry, you totally lost me, without a diagram showing what to do i wouldnt have a clue.
I sort of know what diodes are but what on earth are anodes and cathodes  Huh
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
minimutly
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« Reply #7 on: February 26, 2018, 06:23:49 PM »

The cathode is the end with a stripe around it. No diagram needed, current only flows towards the stripe
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BikerGran
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« Reply #8 on: February 26, 2018, 09:55:00 PM »

Clear as mud, innit Merv?   Vehicle electrix are a closed book to me, I always get someone else to look at mine.
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merv
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« Reply #9 on: February 27, 2018, 02:59:08 PM »

Clear as mud, innit Merv?   Vehicle electrix are a closed book to me, I always get someone else to look at mine.


 Grin Grin Grin
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
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