Swiitched live feed?

[slappy]

I want to place a usb  charger under the front fairing on my FZ1 so I can occasionally charge my phone or use it as a satnav and it will be easily accessible.
I have bought a 12v one and want to know which wire at the front of the bike I can tap into so that it is only live when the ignition is on, I had thought of using either the yellow/black or the green/black wire that goes to the  front lights.
Would this be ok to do?

[Fazafou]

Best method is to run a live off the battery through a relay.

This can then be triggered by the live off your sidelights and you have a full power circuit powering your accessories without affecting the lighting circuit

[slappy]

I knew someone would say use a relay
The problem with using a relay is me , I have no idea what kind of relay to fit or how to trigger it from the sidelight.  :o

[Fazafou]

A quick Google explains it

It's not too hard, you can pick up automotive relays from halfords for a few quid.

Worst case run it directly off your side light live feed, accessories are fairly low voltage do should be ok, but there's always a risk if you put a lot of juice through it.

A relay is the safest way to isolate it on its own circuit.

Just Google 'how to wire a car relay' and it explains it.

Four connections, earth, live from battery, live from side light and connection to the accessory.

[slappy]

Thanks for the help, I have got Friday off  so I will nip to Halfords and fit it then.

[markie_wales]

Short explanation of wiring in a relay.

- Wire high AMP wire directly from the battery to the accessory. Make sure the wire is of a high enough amperage. If you think it's needed wire in an in-line fuse at this stage near the battery to the "live" wire.
- Make sure accessory works.
- Cut the new live wire at a suitable point
- Relays are labeled differently, but connect these two cut wire ends to the "load" terminals of the relay.
- Find the switched live you want to use to power the relay. Run a live feed from this to the live "switch" terminal of the relay.
- Connect the ground terminal of the relay "switch" to a suitable ground.

cheers

Markie

PS was popping in as I fancy a road bike and thoughts turned to a Fazer 1000 (gen 1)

[mr self destruct]

Use a 4 pin relay like this:


Terminal 30 connects directly to the battery via a fuse suitable for whatever the intended use.
Terminal 87 runs to whatever you're powering (sat-nav, charger, spotlights etc.).
Terminal 86 comes from whatever you use to activate it (i.e. the sidelight switch, or a toggle switch, or the ignition if you want).
Terminal 85 runs to earth.

[Ebme Geek]

I have been beaten twice now, I have written it so sod it I will post anyway, it may help aswell
Mr self destruct is correct

If you go the relay route, I would recommend a fuse holder in the live from the battery aswell for safety sake, located as close to the battery as possible, then the only bit of wire not protected is that between the battery and the relay,

Following on from what Markie put,
If you get an automotive relay it will probably be marked up in the standard automotive notation,
i.e. the contact (load part) is between 30 & 87, and the coil is between terminals 85 & 86

so connect,
'86' to your controlling feed, side lights, whatever
'85' to ground

'30' to the battery via a fuse (and use a fuse rated less than wire!  )
'87' to your accessories

But to be honest the bits you list are low power, and will not draw much current
so a relay is probably a bit overkill

Steve

[Fazafou]

Here you go - I couldn't post so easily earlier through tapatalk.

http://www.canyonchasers.net/shop/generic/relay.php

I did this and fitted an accesory block - you can forget the block if you want, but it makes it easier to fit stuff in the future as you have one relay controlling a live feed from the battery for all your potential accessories.

I have two accessory sockets, fog lights, PD Oiler and a voltage display all running off mine 

[slappy]

Thanks for all the answers
The distribution block looks a good idea, I will just fit the relay to the usb charger for now and if I can make a tidy job of that I will upgrade to the distribution block before winter as I want to fit heated grips as well.
I have always been put off by electrics as I have no idea about them but its seems to be more straightforward than I thought.

[VNA]

Assuming the gen2 has a similar fuse box to the gen1, just use one of the spare switched lives with a suitable in-line fuse.
Which is presumably what they are there for.
No need for a relay.

See the thread on the old forum for fitting heated grips.  Scroll down to the bottom of the first page for how to tap into the fuse box.

http://fazerowners.yuku.com/topic/5650/H..._O93mMijgU