Horn on M800 stopped working

My horn seems to have stopped working; so I need to test it and the wiring. It looks a pig to remove from behind the radiator; has anyone got any tips?

The horn itself is a bitch to get to, when I installed my Stebel horn I left the stock one in place partly because it was so awkward to get to & just pulled the wires off.
You can still easily test if the actual stock horn is OK or not though by pulling the wires off it and popping them on another one or on to a 12v light. Lots of easy ways to test without using a meter, if something else works off the wires then you know the horn is down.

Will give it a try!

Have managed to get the horn out.... you can just about get access from the L side of the bike if you move the radiator hose up out of the way and tie it back. The wiring is fine and there is continuity at the switch, but the horn unit is knackered (what a shame!)
I will not be bothering getting a new stock horn, looking at the Stebel instead.

Dave...... did you hide the relay up under the steering column cover? And what size in-line fuse did you use from the battery?

ippikin wrote:

Dave...... did you hide the relay up under the steering column cover? And what size in-line fuse did you use from the battery?

Yeah relay is behind neck cover and I used a 30amp fuse
Have a look in the link in my above post, that should explain a little.

ippikin wrote:

I will not be bothering getting a new stock horn, looking at the Stebel instead.

These horns are cheap and you will be shocked at how loud they are