Fitting 139db horn

I'm thinking of fitting one of these:


Is it easy to fit the relay that comes with it? and where is the stock horn located on the bike (M800), any other advise welcome.

eh press the button place head near frame and listen for the loud noise!

Probably behind the radiator like the intruder. You can just reach the leads with your fingers but I had to use needle nose pliers as my fingers are rather large.
Mind you putting them back on when/if you get rid of the bike may be a right pain in the arse!!!

stingray wrote:

 and where is the stock horn located on the bike (M800), any other advise welcome.

Yeah John behind the rad just above the fan as Peter says, Most people mount the bigger horn on the left hand side of the down spar of the frame  

Good luck with the mod.... I switched my horn a while back.... Could barely reach the wires to pull them off (just spade  connectors) so obviously left original horn in situ but 'dead'. And yes, mine is the m800, and the horn is behind the rad.

I did same as Mal and as Sim says.

Cheers guys,  think I,ll order one 2moz.

Hi John

This may help - Horn Fitting

I've just read that Nippy Normans the BMW parts seller has new stocks of the Stebel 139db horn for sale at about £50-. I'll see if I can find the proper link later ok?

The web address for the horns is :-

www.nippynormans.com & they are found under HORNS at £39-00 + P&P.

Cheers Pete 

Thanks pete, ordered, you on commission?

Don't forget to fit a relay or you'll melt your horn switch - resulting in you having to replace the whole switchgear assembly.

The kit should come with a relay as did mine & no Justin not on commission seeing as it's a BMW parts seller.

Mine arrived yesterday, any pointers on where to fit it!!  I know the norm is the top frame bolt on the left side but I cant due to massive engine guard any other options before I start making plates up. thanks

I'd accept that you're going to need to knock up a basic bracket to fit where you said Justin, - unfortunately, it's the best location for routing the cables & picking up a feed from the existing horn.  All you need is a piece of flat steel about 1" x 3" 

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Thanks Dave, that's what I thought. Did you run the neg back to the battery or just used a o connector and put it behind the screw going into the frame? the existing horns didn't have a neg terminal the connection to the frame acted as the earth.

I ran it directly to the battery as mine came with heavy gauge wire