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Thread: Stebel Nautilus 139db horn - installation review Reply to Thread
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  Topic Review (Newest First)
04-10-2015 11:54 PM
WOLO horn moisture exposure

As a retired power plant electrician I can recommend this product for sealing exposed wiring & connectors.

Glyptal red enamel insulating coating
. Pricey? Very.

Plan B: use nail polish.

Hope this helps.


Belhaven, NC
04-10-2015 09:19 PM
Treetop I got lucky on my install and located some marine grade electrical connectors. They're crimp-ons but I soldered them anyway. I used a short length of black vinyl 1/2 inch to route the wires, and the relay's got a matching set of connectors there too. Everythings sealed with RTV and there ain't any wires to look at.
I hate wires.
They are so hard to eliminate properly.
If I didn't need them, I wouldn't have them.

Enjoy the horns. They will get anyones attention.
04-02-2015 12:31 AM
jmax99 I had a couple on my C50 -- can't remember exactly what product I used, but I coated the connections with a tube of silicone to protect them. It kept the connections dry and no worries about them coming loose. I mounted mine up fairly high too (bracket connected to the top bolt of my Cobra bars) which probably helped keep it out of the road spray. I rode in plenty of rain and never had a problem, but after about 2 years my first one came apart and seemed to either lose its seal or short out immediately. The second was still working when I sold the bike and probably had about 30,000 miles on it.
04-01-2015 08:25 PM
cbwoods I have had one of these horns for a few years, because I hate that little crap horn that comes stock on most motorcycles. The only problem is I have never taken the initiative to install the thing because I felt like it would be more of a pain than I already feel in my lower back side. After watching this video, I think I can handle it. And since I'm riding in South Korea again (where the cagers try even harder to kill bikers), I really need this!

As for the issue of shorting out the horn in the rain, I wonder if a rubber (or soft plastic) cap over the horn, with the wires fed through the bottom would work to prevent that. Something similar to the positive battery terminal cap is what I'm thinking about.
02-24-2015 06:46 PM
Edge540FL I just installed one on my C50T. I used the same bolt and at Home Depot got a stainless U bolt to use only the 2" long part that go across the bolt (the holes are exactly the size I needed, no drilling). I love this upgrade!Attachment 65705

Sent from Free App
11-04-2014 11:45 AM
bipestuff Gotta have one - they have saved me a few times for sure!
11-01-2014 06:50 AM
Marcin Congratulations Unabobber.... it's a cool club to be in

I'm glad the video helped. Thank you for watching Sir.

Loud horns save lives? They sure do
...or give grannies a heart attack ;D
10-31-2014 06:39 PM
The Unabobber I just joined the ranks of Wolo Bad Boys today. Thanks for your video. The installation is easy, but it is great to see how someone approached it. I pretty much copied everything you did, except that I used the Wolo Bad Boy instead of the Stebel, which appear to be the exact same product. Mine came with a relay, and I added my own wiring and fuse block and connectors. Took about an easy hour and one Dr Pepper (soft drink) to do the job.

That bad boy is LLOOUUDD!! I am tired of being cut off by careless drivers, and they can't even hear that little beep beep horn that comes on the C50, worst horn ever. This should get their attention. Loud horns save lives?
10-15-2014 05:26 PM
Marcin I must say that having the exposed connectors from the bottom was probably not the best design idea.
I've heatshrinked all cables, etc.. what else could you do...hmm possible a coat of vaseline around any exposed parts of spade connectors... the horn decides to short out internally...there's nothing one can do I think :/
10-15-2014 06:53 AM
Slow Cruiser Dennis, perhaps if it was installed out of the spray from the front wheel? I don't know, I aint that smart when it comes to electrics.
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