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Tiger Time => Girly Talk (1999 - 2006 Tigers) => Topic started by: aesdj on March 12, 2011, 11:39:59 AM

Title: Stupid Horn Question
Post by: aesdj on March 12, 2011, 11:39:59 AM
I've just got a Stebel Magnum horn and it says it needs a 20 amp fuse  :shock:. Looked at the wiring diagram and the feed comes out of the ignition to number 4 fuse (15 amp) then to the horn. Out of the horn and to the switch that sends it to earth when pressed. It works fine and LOUD but I'm concerned it may damage the wiring. Now here's the stupid question bit. When the horn is working and pulling 20 amps the fuse should have blown shouldn't it so I'm thinking everything will be fine and anyway it will only be pulling full amps for as long as the buttons pressed which is'nt long.
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Post by: Bixxer Bob on March 12, 2011, 12:43:38 PM
:shock:

Use a relay mate!!!!

No load on your existing wiring then.   Take the connectors you currently have on the Stebel and put them on the switching terminals of a 30 amp relay (mine's under the seat but you can hide it anywhere).   Now take a lead from the battery (use proper crimps for a neat job) to a waterproof in-line fuse then to one switched terminal of the relay.  Then from the last relay terminal to the Stebel and from the Stebel to ground.  Now all your existing wiring is switching is the relay.

Or you could have a ride down and I'll do it for ya!!
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Post by: oxnsox on March 14, 2011, 09:07:38 AM
Biggest load will be when you initially thumb the button, and even if it pulls 20amps it'll have to do it for a bit before the fuse actually blows..... soo in short it'll probably be just fine till you actually need it and that'll be the time it blows the fuse after an initial 'peep'.

But really follow Bob's advice, or better yet go see him... he's unemployed and bored....
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Post by: ChazzyB on March 14, 2011, 10:20:02 PM
Just found some blurb on t'net that says the Magnum draws no more than 6 amps.  Mine's never caused a fuse to blow - it's been fitted on the Tiger for three years and was on an earlier bike before then too.
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Post by: HockleyBoy on March 15, 2011, 02:23:17 PM
Got a magnum on mine too, plug and play and hasnt caused any problems in three or four years, need to use it quite a lot too on my London commute :D
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Post by: Bixxer Bob on March 15, 2011, 02:40:18 PM
Not saying the loom wiring can't handle the Stebel, but why take the risk for the sake of a £3 relay?  All my farkles run through relays to protect the loom from any chance of damage.

Have you seen the price of a loom???
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Post by: aesdj on March 15, 2011, 07:03:33 PM
Thanks lads. I thought it would be fine but as Bixxer says its not worth the risk. It's not going on the road for another couple of weeks so it will give me an excuse to get out of watching Dancing on Ice  :lol:
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