| Re: horns barely audible [message #769219] |
Tue, 11 July 2006 10:27 |
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Gene Cash wrote:
> Bummers <bummers [at] NOSPAMinternode.on.net> writes:
>
>> <snip>
>> While talking horns...
>> I replaced the standard horns on my 81 GSX1100 with aftermarket 12v horns.
>> I tried tuning each separately for max noise with the adjuster screws
>> but couldn't get a loud enough sound.
>> I tried disconnecting the wiring to each & retuning; each was fine alone
>> but when I hooked them both up the sounds diminished considerably as if
>> there was a voltage drop across them.
>> Have I got a voltage supply problem?
>> How should twin horns be tuned?
>
> Yes, you're definately getting a voltage drop.
>
> Do you have them on a relay tied to the battery with some nice heavy
> gauge wire? The volume is roughly proportional to the current it gets,
> up to a limit.
>
> You might want to run a 2-pole relay with separate circuits for both
> horns, but I've never had to get that desperate. Those damn Fiamm horns
> are picky.
>
> The adjuster screw is for hitting the best resonance with the particular
> horn for loudest noise. If they rust a little, then the resonant
> frequency changes slightly and you have to retune them.
>
> Eventually the weather will get to them and they'll stop working
> altogether.
>
> -gc
>
They were new horns which I just plugged into the existing standard
wiring - no relays & I would have thought they were about the same
current draw.
How can I check them or the wiring for problems - resistance of each horn?
And resistance of thew wiring between the button & the horn?
Any idea what the standard 12v horn resistance should be?
Or can I just check voltage at each horn?
Bummers.
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| Re: horns barely audible [message #769226 ] |
Tue, 11 July 2006 11:35 |
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On Tue, 11 Jul 2006 18:27:55 +1000, Bummers <bummers [at] NOSPAMinternode.on.net>
wrote in <12b6o8b6grjkv20 [at] corp.supernews.com>:
> They were new horns which I just plugged into the existing standard
> wiring - no relays & I would have thought they were about the same
> current draw.
> How can I check them or the wiring for problems - resistance of each horn?
> And resistance of thew wiring between the button & the horn?
> Any idea what the standard 12v horn resistance should be?
> Or can I just check voltage at each horn?
Yes, measure the voltage across the horn terminals when they are
operated and compare that to what you measure directly across the battery.
The difference is the voltage drop. Better to use an analogue rather than
digital meter because there will be considerable ripple and spikes due to
the way the horn works.
--
Ivan Reid, Electronic & Computer Engineering, ___ CMS Collaboration,
Brunel University. Ivan.Reid [at] [brunel.ac.uk|cern.ch] Room 40-1-B12, CERN
GSX600F, RG250WD "You Porsche. Me pass!" DoD #484 JKLO#003, 005
WP7# 3000 LC Unit #2368 (tinlc) UKMC#00009 BOTAFOT#16 UKRMMA#7 (Hon)
KotPT -- "for stupidity above and beyond the call of duty".
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| Re: horns barely audible [message #769236 ] |
Wed, 12 July 2006 01:20 |
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Because Bummers <bummers [at] NOSPAMinternode.on.net> could, he/she/it
opin'd:
>They were new horns which I just plugged into the existing standard
>wiring - no relays & I would have thought they were about the same
>current draw.
Probably not. Motorcycles come with notoriously weak meepers compared
to aftermarket horns; especially Fiamms and their ilk. A relay is
always recommended.
>How can I check them or the wiring for problems - resistance of each horn?
>And resistance of thew wiring between the button & the horn?
>
>Any idea what the standard 12v horn resistance should be?
>
>Or can I just check voltage at each horn?
I wouldn't do any of those things; I'd run a separate fused wire
(14-guage or heavier preferred) from the battery and use that current
switched through a relay to power the horns. Then you're getting the
maximum from the horns at the least risk to the horn button and the
rest of the wiring.
There's a pretty dang good writeup at:
< http://home.cfl.rr.com/genecash/air_horns/air_horn_wiring.ht ml>
(You can just bypass the impulse relay if you don't want that feature
and you'll still get all the volume your horns will produce.)
I also have a text-only writeup that I could send you if you want. I'm
pooderatcharterdotnet or something like that . . . .
pooder was here still being horny
--
Quid tibi (est) opiniones aliorum
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| Re: horns barely audible [message #769238 ] |
Wed, 12 July 2006 02:34 |
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Post removed (X-No-Archive: yes)
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| Re: horns barely audible [message #769239 ] |
Wed, 12 July 2006 02:32 |
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Post removed (X-No-Archive: yes)
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| Re: horns barely audible [message #769244 ] |
Wed, 12 July 2006 08:18 |
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Don Fearn <pooder [at] charter.net> wrote:
> notoriously weak meepers
What a *lovely* expression :-)))
Meep! Meep! Yes, exactly like a dying bike horn.
--
Trophy 1200 750SS CB400F CD250 Z650
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60 ANORAK#06 YTC#3
BOF#30 WUSS#5 The bells, the bells.....
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