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Do you have to install a relay for this horn?



Yes, yes, yes, a hundred times yes! Installing a relay is one of the simplest jobs you can do on your bike... it's easier than pulling the AI off! In fact, if you've pulled the AI off you already have the pefect mounting point for the relay, kindly provided by triumph! And why on earth would you want to avoid so simple a job when it will save your bike at best always blowing fuses, and at worst possibly having it's wiring catch fire?! You don't even need soldering skills for this job - just some crimp-on spade terminals and a cheapy crimper from any auto accessory shop.

The only reason they don't have horn relays when they come out of the factory is coz they have a tiny pathetic little beeper that goes "meep". If you want a horn that goes "GET THE H*LL OUT OF MY WAY!!!" you need a relay.

Fitting them is simple, they've even put numbers on the terminals for you! Bolt the relay in place to the AI mount. Put the two existing horn wires on the two coil terminals (85 & 86, doesn't really matter which way round you do it) of the relay. Fit a wire from the battery's positive terminal to one of the switch terminals (30) on the relay and another wire from the other switch terminal (87) to the horn/s. You might need to also run an earth wire for the horn/s, these can either go to a conveniant mounting bolt on the frame or to the battery's negative terminal. Finished - roughly a 1 beer job for a single horn + relay. If you want to get tricky you can put an in-line fuse in the wire from the battery positive terminal, or simply purchase a relay with a fuse socket built in.

I'm currently running a pair of very loud horns on my foot control bar but I think they've been weather affected from being mounted so close to the road so I'm waiting on a "stebel compact nautilus air horn" to put in the standard horn location. Apparently these things are so loud they've been known to traumatise small children into needing therapy later in life.



Well my AI is off.. Will the "Stebel Nautilus Compact Motorcycle Air Horn" mount in the stock horn location? I'm not afraid of wiring up a relay, I'm just lazy...



-ddb

Black 2002 Bonneville America