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Indicator problems

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rhys99
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Joined: 23 Feb 2015
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PostPosted: 20:42 - 05 May 2016    Post subject: Indicator problems Reply with quote
Installed some aftermarket indicators which just stay lit, however when i use the stock front and aftermarket rear they are fine, any ideas what this could be?
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Ichy
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PostPosted: 21:07 - 05 May 2016    Post subject: Reply with quote
Are the replacement LED? They might need a new relay to get them to work.

https://www.ebay.co.uk/itm/CF13-Elettronico-Flasher-Relay-CF13-Fix-3-pin-LED-Error-FAST-MOTO-11V-15V-HOT-/261901208136
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Islander
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PostPosted: 21:13 - 05 May 2016    Post subject: Reply with quote
Fit an electronic relay that's load independent. Thumbs Up
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rhys99
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PostPosted: 21:40 - 05 May 2016    Post subject: Reply with quote
Non LED, I want to sort this without buying new relays etc, could it be as simple as the bulb not being the right wattage? i've tried 10w and 23w
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Ichy
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PostPosted: 22:20 - 05 May 2016    Post subject: Reply with quote
Have you swapped the wires around?

What bulb is fitted in the stock indicator? Usually a good indicator.
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Islander
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PostPosted: 22:50 - 05 May 2016    Post subject: Reply with quote
Some aftermarket indicators are only 10W compared with 21W for standard which is enough to stop a bimetallic relay from working.
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rhys99
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PostPosted: 09:55 - 06 May 2016    Post subject: Reply with quote
stock bulb is 10W, Made a video to make it easier for people to understand

https://www.youtube.com/watch?v=DU2UarqupBI
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Islander
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PostPosted: 12:05 - 06 May 2016    Post subject: Reply with quote
If the indicators aren't flashing when the new ones are fitted but flash with the old then the new ones aren't loading the relay sufficiently to operate it.

A mechanical flasher relay depends on a certain amount of current being drawn by the load (bulbs) in order to heat up a coil that is wrapped around a bimetallic strip that forms the relay armature. When the strip warms up, it bends away from the contact and opens it, with no current flowing it cools and the cycle repeats.
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rhys99
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PostPosted: 13:35 - 06 May 2016    Post subject: Reply with quote
Islander wrote:
If the indicators aren't flashing when the new ones are fitted but flash with the old then the new ones aren't loading the relay sufficiently to operate it.

A mechanical flasher relay depends on a certain amount of current being drawn by the load (bulbs) in order to heat up a coil that is wrapped around a bimetallic strip that forms the relay armature. When the strip warms up, it bends away from the contact and opens it, with no current flowing it cools and the cycle repeats.
Yes, im using the same wattage bulbs as what originally came on the bike
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neilus123
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Joined: 07 Mar 2012
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PostPosted: 15:22 - 06 May 2016    Post subject: Reply with quote
Is it a 6v or 12v system if using a 12v on 6v then they won't work properly unless you add another bulb or resistor in series to the system.
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rhys99
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PostPosted: 15:54 - 06 May 2016    Post subject: Reply with quote
neilus123 wrote:
Is it a 6v or 12v system if using a 12v on 6v then they won't work properly unless you add another bulb or resistor in series to the system.
It's a 12V system AFAIK
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Matt B
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PostPosted: 16:08 - 06 May 2016    Post subject: Reply with quote
Ichy wrote:
Usually a good indicator.


Except in this case, where they are not...
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Islander
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PostPosted: 17:35 - 06 May 2016    Post subject: Reply with quote
neilus123 wrote:
Is it a 6v or 12v system if using a 12v on 6v then they won't work properly unless you add another bulb or resistor in series to the system.


If you add a bulb or resistor in series then you increase the load resistance, decrease the current and hence power.
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rhys99
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PostPosted: 09:35 - 07 May 2016    Post subject: Reply with quote
Measured the resistance: 0.25 for aftermarket and 0.2 stock.
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Ichy
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PostPosted: 10:04 - 07 May 2016    Post subject: Reply with quote
rhys99 wrote:
Measured the resistance: 0.25 for aftermarket and 0.2 stock.


It should not be this complicated. It's a light bulb with some power to it.
For the sake of a couple of quid it could be easily fixed. Get yourself a replacement relay.
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rhys99
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PostPosted: 10:25 - 07 May 2016    Post subject: Reply with quote
Ichy wrote:
rhys99 wrote:
Measured the resistance: 0.25 for aftermarket and 0.2 stock.


It should not be this complicated. It's a light bulb with some power to it.
For the sake of a couple of quid it could be easily fixed. Get yourself a replacement relay.
I shouldnt need a replacment relay though. Why would i? im using the same wattage bulb. Nothing should of changed.
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Nobby the Bastard
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PostPosted: 10:36 - 07 May 2016    Post subject: Reply with quote
The resistance of the new indicators is another 1/4 again of the originals. It may not seem like much but that will make a big difference to the rate of flash.

The bulbs are either not the same wattage and voltage or something else is causing an increase to the resistance.
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rhys99
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PostPosted: 10:43 - 07 May 2016    Post subject: Reply with quote
Nobby the Bastard wrote:
The resistance of the new indicators is another 1/4 again of the originals. It may not seem like much but that will make a big difference to the rate of flash.

The bulbs are either not the same wattage and voltage or something else is causing an increase to the resistance.
Cheers nobby, so what do you suggest i do? buy new bulbs?
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Nobby the Bastard
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PostPosted: 10:48 - 07 May 2016    Post subject: Reply with quote
Provided that your bike takes a standard type/size of flasher unit, i would just get a electronic l.e.d. type one as they are cheap.

these don't require a particular power load to control the flashing rate.
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Islander
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PostPosted: 12:17 - 07 May 2016    Post subject: Reply with quote
rhys99 wrote:
Measured the resistance: 0.25 for aftermarket and 0.2 stock.


Couple that with the explanation of how a flasher relay works and you have your answer.

Fit an electronic relay ffs - they're as cheap as chips and don't care what the load resistance is.
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Ichy
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PostPosted: 12:52 - 07 May 2016    Post subject: Reply with quote
rhys99 wrote:

Cheers nobby, so what do you suggest i do? buy new bulbs?


Yeah, go buy new bulbs.

When that doesn't work come back and get the same answer you have had 5 times already Wink.
Seriously, there is a very easy fix that will take minutes to fit for less than £4.
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rhys99
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PostPosted: 16:32 - 07 May 2016    Post subject: Reply with quote
Ichy wrote:
rhys99 wrote:

Cheers nobby, so what do you suggest i do? buy new bulbs?


Yeah, go buy new bulbs.

When that doesn't work come back and get the same answer you have had 5 times already Wink.
Seriously, there is a very easy fix that will take minutes to fit for less than £4.
I will get a new relay then
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Ichy
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PostPosted: 16:58 - 07 May 2016    Post subject: Reply with quote
rhys99 wrote:
I will get a new relay then


Make sure you get the right one.
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rhys99
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PostPosted: 11:53 - 08 May 2016    Post subject: Reply with quote
Bough some 12v 20w bulbs and it works great! cheers for all the advice
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Nobby the Bastard
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PostPosted: 12:27 - 08 May 2016    Post subject: Reply with quote
rhys99 wrote:
Bough some 12v 20w bulbs and it works great! cheers for all the advice


Wanker.
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