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Don't know if you remember, I posted about my horn blowing the lights, dash and indicator fuse? Turns out that where the wires come out from the main loom and under a bracket to get to the horn, both wires had been rubbing enough on the bracket to be worn down to the bare conductors so when ever I pressed the horn button it just created a dead short.

I've since moved the horn and it's now bolted to the bottom yoke with the wires away from any sharp edges!

As it's a bit of a noddy horn as stock, I thought I'd get a nice deep tone one from Halfords. Wired it into the Falco, pressed the button and... "Tonk!"...eh? Press it again... "Tonk!"...odd, says 12v on it, no need for a relay, re-fit the OE horn, press the button..."Meeeeeep!"...Hmmm, not the bike then, fit the new horn to the Missus' Fazer..."PAAAAAAAARP!" OK, it works then. Fit it to her Tuono..."Tonk!" and blows a fuse. Arse!

So how are Yamaha volts different from Aprilia volts? Is it a current drain issue? Wierd.

Your Missus has a Fazer AND a Tuono ??


Oh, sorry - don't have an answer about the electrics Nooj

Nooj, the new horn will blow fuses if its drawing to many amps regardless if its 12 volt or not.

I don't know how many amps the wiring supply's the standard one, but would guarantee thats where the problem is. baybe check out the futura forum as they have found out how to fit big noisy horns