Another reason to do the coil mod anyways

bill_wilcox100 wrote:

The relays I bought locally do have an 87a so it is an issue only to me it seems. :whistle:

Well, the one I bought recently has the 87a on it as well. So you're post is still helpful.

Linky no worky!

CruisingRam, the link to the WG site worked for me. The problem could be at your end?

Best of success!

LittleB, your signature does not have a location... where are you at?

Post edited by: bill_wilcox100, at: 2008/01/10 00:26

bill_wilcox100 wrote:

My appologies to WG and company... looking at his web site I finally noticed that his suggested automotive relay does not have an 87a. :pinch:

Therefore, the problem of Battery voltage on an unused and potentialy unprotected contact when the ingnition is OFF never comes up. :S

The relays I bought locally do have an 87a so it is an issue only to me it seems. :whistle:

By wiring the 12 volt hot wire to the 87 terminal and the coil to the 30 terminal (reverse of Wired George's diagram) you not only eliminate a hot 87a terminal when the relay is off, but provides another advantage.


By adding a ground to terminal 87a, you ground the coils when the relay is off. This makes it significantly more difficult for a thief to hotwire your bike.

Two benefits from one relay!

robjonrik wrote:

Two benefits from one relay!

That rocks!

@bill...Colorado

robjonrik wrote:

By adding a ground to terminal 87a, you ground the coils when the relay is off. This makes it significantly more difficult for a thief to hotwire your bike.

Two benefits from one relay!

How would a thief hotwire a bike? All I've ever seen them do is jam a screwdriver into the ignition switch...

Good stuff robjonrik!

We now have a WG Coil Repowering mod with Anti-theft feature.

As my son would say, "Way past cool!"

Best of success!

inline79 wrote:

How would a thief hotwire a bike? All I've ever seen them do is jam a screwdriver into the ignition switch...

Not hard to do. Just need to know the right colored wires to cross, and they're just right there, coming out of the headlight bucket.

bill_wilcox100 wrote:

This is Issue 02 of the diagram which correctly identifies and points to 87 as the only pin with Battery present when the Ignition is Off.

Bill, do you happen to have a larger image of this? Perhaps a link to where the original is?

Edit: Is the only difference between Inline79 & robjonrik's method, adding a ground to 87a?

Another question: Is it important to use 12 AWG size wire to go from the relay to the coils or will 18 AWG suffice?

Post edited by: Little B, at: 2008/01/19 00:24

Post edited by: Little B, at: 2008/01/19 03:43

Little B wrote:

...Is the only difference between Inline79 & robjonrik's method, adding a ground to 87a?

Nope. The difference is a reversal of the #30 and #87. Remember that WG's original spec calls for a relay that does not even have a 87a on it, just an 87. So all of this only matters if you got a relay with an 87a on it.


Little B wrote:

Another question: Is it important to use 12 AWG size wire to go from the relay to the coils or will 18 AWG suffice? ...

Hmm... I'd be concerned about over-stressing the wire... But I just don't know... A small roll of 12 is cheap at your local auto store...


Post edited by: Biquetoast, at: 2008/01/19 19:47

Biquetoast wrote:

Little B wrote:

...Is the only difference between Inline79 & robjonrik's method, adding a ground to 87a?

Nope. The difference is a reversal of the #30 and #87. Remember that WG's original spec calls for a relay that does not even have a 87a on it, just an 87. So all of this only matters if you got a relay with an 87a on it.

Thanks Biquetoast! I'll go ahead and use the 12 to power the coils.

From what robjonrik wrote, it seems that he is saying to add a ground to the 87a wire. I understand about swapping 30 & 87, am just wondering about 87a since my relay has that.

Here is what I was referring to:

robjonrik wrote:

By wiring the 12 volt hot wire to the 87 terminal and the coil to the 30 terminal (reverse of Wired George's diagram) you not only eliminate a hot 87a terminal when the relay is off, but provides another advantage.

By adding a ground to terminal 87a, you ground the coils when the relay is off. This makes it significantly more difficult for a thief to hotwire your bike.

Little B wrote:

bill_wilcox100 wrote:

"Bill, do you happen to have a larger image of this? Perhaps a link to where the original is?"

Little B, sorry for the late response! I'm on the road/job right now. I have it available in the native Visio format, pdf and jpg... pick your poison. Just PM me and I will reply ASAP.