Spent a few hours today and got my Stebel Nautilus horn installed. After separating the compressor/motor unit from the horn, I found great spots for it inside the upper right side faring.
I had a Stebel Nautilus horn on my FZ6 and I loved it. 139dB of derailing freight train goodness. Enough to wake up the most inattentive driver out there.
For this installation I had to separate the motor/compressor from the horn unit. This is done by prying up on the compressor nipple that is inserted into the horn. The compressor was also glued to the plastic horn section, so some additional prying was needed to separate it. What you end up with is two pieces that makes mounting a little easier.
Once separated, you simply use rubber tubing and a brass fitting in order to connect the compressor unit to the horn. I purchased a 5/16 rubber tubing and some barbed fittings from Home Depot.
I mounted both the horn and the compressor unit in the right side front faring area. By mistake I had ended up taking the compressor unit apart (during my horn separation process). In doing so I found out that all it is is an electric motor that spins a shaft that goes to a 'fan' in the top that pushes air into the horn. So I didn't see any reason for the compressor unit to remain upright.
For mounting the horn, I simply used some 3M double sided tape. For the compressor I used some 3M tape as well, but also drilled two holes through the black plastic and secured it with a cable tie.
The Stebel comes with a relay and yes you will need one as it can draw up to 20amps!! I used the two existing wires going to the stock horn (light green w/silver dots = +12VDC activated by the horn button and dark green w/silver dots = Ground). I left the stock horn in place.
Wiring for the relay is as follows:
85 - Ground
86 - Horn wire - light green w/silver dots = +12VDC activated by the horn button
87 - +12VDC switched (power when ignition is on)
30 - Horn compressor +
- terminal on Horn compressor - Ground
I hooked up 87 to my
FZ1 Fuse Block and set it to switched power so only the horn will work when the ignition is on. You can also wire it so the horn will work with constant 12 VDC so it will work with the ignition off (user preference).I initially used a 7.5Amp fuse, but after 2 test blasts of the horn it blew the fuse. So I now have a 15 Amp fuse and that seems to work fine.
- Boneman
Edited October 23, 2011 by BonemanVFR