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Need advice installing flasher relay

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Robbybobby125
L Plate Warrior



Joined: 10 Sep 2017
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PostPosted: 13:23 - 10 Sep 2017    Post subject: Need advice installing flasher relay Reply with quote
I have replaced my indicators but the flash rate is too fast so i need to replace the flasher relay. The new indicators came with a 2 pin flasher relay when the stock is a 3 pin relay. I can connect the live and source wires but then im left with the ground/earth wire. It wont work unless grounded. Is there any way to do this? Dont have time for buying a new relay or resistors as my bike is having its MOT tomorrow.
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Tankie
Crazy Courier



Joined: 24 Feb 2017
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PostPosted: 14:24 - 10 Sep 2017    Post subject: Reply with quote
run a wire from the relay to earth(frame),or the Neg of the battery
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 14:35 - 10 Sep 2017    Post subject: Reply with quote
Tankie wrote:
run a wire from the relay to earth(frame),or the Neg of the battery


If you don't know what you're talking about, don't post.

Don't do this OP. The third wire (usually labelled P on the relay) isn't an earth wire, it's for the repeater bulb. Some relays will have an additional earth or have the casing earthed but it's not common on Japanese motorcycles.

You MIGHT find it works if you just connect the X terminal to the battery and the L terminal to the switch and leave the P floating but your repeater lights wont work.

If they do flash, no repeater is not the end of the world because an MOT pass should be on the cards if you can see the front flashers from where you sit and tape over the dash repeater.

Another thing you could do if it's flashing too fast with the original flasher is to up the current draw. I've done this before by wiring in a 10W bulb holder under the bodywork (where it can't be seen) in series with the wire coming off terminal L.

You really need a 3-pin relay though. Or to rewire the repeater light in paralell with the flashers to suit a 2-pin setup.

EDIT: Also worth noting, you're allowed up to 120 flashes per minute for the MOT, which is pretty fast.
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I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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WD Forte
World Chat Champion



Joined: 17 Jun 2010
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PostPosted: 16:26 - 10 Sep 2017    Post subject: Reply with quote
Tankie wrote:
run a wire from the relay to earth(frame),or the Neg of the battery


How dare you!

how very fucking dare you try and be helpful and offer suggestions

Gahh !!
you people !!
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 17:04 - 10 Sep 2017    Post subject: Reply with quote
WD Forte wrote:
Tankie wrote:
run a wire from the relay to earth(frame),or the Neg of the battery


How dare you!

how very fucking dare you try and be helpful and offer suggestions

Gahh !!
you people !!


Well. In this case connecting the "spare" lead to the battery negative would have no effect. You'd effectively have both ends of the flasher repeater circuit earthed. In other cases (say he had fitted a 3 pin relay to a bike designed for a 2-pin relay and earthed the spare pin) it could have resulted in a short circuit and a blown fuse/relay/fire/battery explosion.

So. No advice is better than wrong advice.

Yes the OP asked about earthing his flasher relay when that's not what he actually needs to do. Thing is, there are no wrong questions, it's important that he asked it instead of ploughing on regardless.

If someone asked what brand of matches they should use to check the fuel level in their tank, you don't recommend one, you tell them to use a torch.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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Tankie
Crazy Courier



Joined: 24 Feb 2017
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PostPosted: 18:59 - 10 Sep 2017    Post subject: Reply with quote
The correct answer is... yes you twats ,is put the "spare wire "which is the pilot bulb supply wire onto the output side of the relay, therefore piggybacking it, no tape needed !
" Laughing
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 19:18 - 10 Sep 2017    Post subject: Reply with quote
Tankie wrote:
The correct answer is... yes you twats ,is put the "spare wire "which is the pilot bulb supply wire onto the output side of the relay, therefore piggybacking it, no tape needed !
" Laughing


Umm. Wrong again.

Assuming OP has fitted LED flashers with an electronic relay, the way most 3-pin setups are wired, I'd expect that would make the repeater bulb come on all the time.

But just you keep on digging.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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Tankie
Crazy Courier



Joined: 24 Feb 2017
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PostPosted: 19:22 - 10 Sep 2017    Post subject: Reply with quote
NO you think again "stinky fingers"
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 00:52 - 11 Sep 2017    Post subject: Reply with quote
Tankie wrote:
NO you think again "stinky fingers"


Ok. Let's go into this in more detail shall we. I have "borrowed" these diagrams from an Australian motor factors because they are good and I can't be bothered drawing them from scratch.

Here's how a 3-pin setup is usually wired. Most likely what the OP has now.
https://cdn.bcf.44bytes.net/files/flasher3pin.jpg

Here is what you are proposing he does. Can you see why the repeater light will flash on and off by itself if you do this.
https://cdn.bcf.44bytes.net/files/flasher2pinon3pinwires.jpg

This is how a 2-pin setup is usually wired. There is a different way where there is just a single repeater which earths through the opposite flashers but it's a dumb way of doing it and causes chaos if you use LED bulbs.
https://cdn.bcf.44bytes.net/files/flasher2pin.jpg
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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The last post was made 6 years, 226 days ago. Instead of replying here, would creating a new thread be more useful?
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