Coil relay mod question

fjman · February 19, 2016, 07:28:05 PM

I just want to ask before I start the bike just want to make sure everything is right. From the cdi I connected the red/white wires directly to 86 on the 5 pin relay. Should I add an inline fuse? How do I wire a kill switch from here? 30 has an inline fuse from the solenoid,85 is ground,87 and 87a to the coils.thanks

fjman · February 19, 2016, 07:42:58 PM

Since we are running the coils directly from the battery, I'm not using the stock voltage regulator because of the overcharging problem. I'm using a brand called new era voltage regulator. I've never had any charging problems since then. Would this affect my bike in the long run?

mr blackstock · February 20, 2016, 03:54:42 AM

G'day,

There is a discussion covering this in the "Files" section:http://www.fjowners.com/index.php?topic=1755.0

I made up my own diagram awhile ago, it helped me as it was pretty simple to follow:

Cheers, Gareth

Pat Conlon · February 20, 2016, 10:42:17 AM

Gareth, you did not change your diagram since we last spoke.

Pin 87A has no power to the coil when the electrically held relay is energized.

The power leads to both coils should come off of pin 87.

mr blackstock · February 20, 2016, 03:27:51 PM

G'day,

Right you are, I remember having that conversation, anyway I have re-posted the corrected image. Apologies for the mistake, I will go a re-polish the FJ in penance

Cheers, Gareth

Pat Conlon · February 20, 2016, 04:55:31 PM

Thanks Gareth!

Would you mind if I put your excellent diagram over in the Modification Files?
A picture is worth 1000 words.

Thanks again!

mr blackstock · February 20, 2016, 05:14:49 PM

G'day,

If the picture can be used, certainly place it where it can be accessed. I hope Fjman finds it useful. In regards to a kill switch, I suppose locate it on an earth or power wire.... someone might have put one on their bike at some point and have a better location...

Thanks again for the heads up Pat.

Cheers, Gareth

fjman · February 21, 2016, 01:23:40 AM

Thanks for the response.

I'll save the picture.

Sparky84 · February 21, 2016, 02:26:58 AM

Quote from: mr blackstock on February 20, 2016, 05:14:49 PM
G'day,

If the picture can be used, certainly place it where it can be accessed. I hope Fjman finds it useful. In regards to a kill switch, I suppose locate it on an earth or power wire.... someone might have put one on their bike at some point and have a better location...

Thanks again for the heads up Pat.

Cheers, Gareth

Love your diagrams Mr Blackstock, all I have is 2 mercury switches, so if someone moves it off the side stand the hidden siren goes off and off until battery is flat.
I do have to fix that and look into how I wired it about 25yrs ago and put it on paper.
I think I really need a small second battery just for that
What program do you have to draw such Great schematics!!

.Cheers Alan

Alf · February 21, 2016, 05:05:46 AM

Hi Gareth

Please, would you mind if I use your diagram in my web?

Cheers

mr blackstock · February 22, 2016, 01:23:31 AM

G'day,

Thanks for the feedback about the picture. I used microsoft paint to make the picture up, took about 30 minutes. I did it on the work computer so it is all good. People can use the picture freely, if they can improve it more, feel free to. Pat had a good suggestion though, to run the positive lead to the relay directly from the battery instead of going via the starter solenoid. Both ways work, might be tidier on the wiring though.

I figured that if a diagram was simple to read, especially for me, I would be more likely to use it and less worried about cooking something accidently.

cheers, Gareth

Sparky84 · June 24, 2016, 02:26:07 AM

G'day Gareth,

I going to do this on the weekend due to my plugs are always black, do I need to upgrade existing cables to coils from relay with bigger gauge or are they big enough due to now feed is coming straight from battery through relay to coils?

Cheers
Alan

FJmonkey · June 24, 2016, 11:08:43 AM

Quote from: Sparky84 on June 24, 2016, 02:26:07 AM
G'day Gareth,

I going to do this on the weekend due to my plugs are always black, do I need to upgrade existing cables to coils from relay with bigger gauge or are they big enough due to now feed is coming straight from battery through relay to coils?

Cheers
Alan

The original wires from the FJ feeding the relays are now just actuating the relays. The added wires from the battery to relays to the coils are now doing the heavy work. So you do not need to change any existing wires unless they are damaged.

Sparky84 · June 25, 2016, 03:05:58 AM

Quote from: FJmonkey on June 24, 2016, 11:08:43 AM

The original wires from the FJ feeding the relays are now just actuating the relays. The added wires from the battery to relays to the coils are now doing the heavy work. So you do not need to change any existing wires unless they are damaged.
[/quote]

So that means new cable from battery up to front and fit relay adjacent to coils ,
I was hoping to fit relay adjacent battery and use existing cableto coils being switched through relay

Cheers
Alan

FJmonkey · June 25, 2016, 10:11:35 AM

Quote from: Sparky84 on June 25, 2016, 03:05:58 AM
So that means new cable from battery up to front and fit relay adjacent to coils ,
I was hoping to fit relay adjacent battery and use existing cableto coils being switched through relay

Cheers
Alan

Just follow the diagram and you can put the relay anywhere near the battery, all the way to near the coils. Near the battery means you need to run additional wire from the coil plugs back to the relay. Near the coils only adds wire to feed the relay from the battery and make the short connections near the coil connectors. Put the relay where you want, make the connections, all done...

News:

Coil relay mod question