GPZ - "hot hands"

Steven Bixby steven at
Tue Nov 11 11:16:01 PST 2008

Personally, I think it's important to put these things on a relay, lest you
overload a circuit that's not meant to handle the current.   What I would do
in your case is to pick any old circuit that's powered with the ignition
switch on - like the running lights up front - and use that to trigger the
relay, with heated-grip power coming directly from the battery, controlled
by the relay.

I haven't done this on my GPZ, but I've done it on my wife's Ninjette, and
there was an accessory plug in the headlight area that turns out to be hot
when ignition is switched on, grounded by the frame.  This was, as I recall,
a yellow/black wire with a bullet connector and nothing hooked up.

Perhaps the GPZ has one too?

On Tue, Nov 11, 2008 at 10:34 AM, john leonard <jlmdx at> wrote:

> All,
> I'm getting my bike ready for the winter riding by installing "hot hands"
> on the GPZ (e.g. Ebay 200264746894).
> They are designed to connect directly to the battery terminals, but I'd
> much rather have an ignition switched source of power.  For now, I've
> connected them to the accessory lead in the tail section of the GPZ, but
> that source is always powered.  Does anyone know a lead wire in the
> tail/fuse box that would be safe to use?
> I'd prefer not to use the headlight or ignition circuits in case the hot
> hands short out.  I tested the horn circuit but it seems to also be live
> *coming out of fuse box* even without the key installed.
> These things work very well.  They claim to use about 1.3AMPS. They get the
> hands real warm.  My biggest concern is that I leave them switched on or
> someone else turns them on and kills my battery.
> thanks, john
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