Nautilus Compact Loud Air Horn Mounting

[Ros]

I have no idea.  When I connected mine and hit the horn button it wade a noise like...

"thunk...uh"

so then I twiddled the tuning bolt or whatever it is and got it to make a proper "PARP".  Half a turn this way or that way at a time to see what difference it makes etc.

having the engine running obviously supplies the whole thing with a few more volts and so the parp becomes louder...  That's my experience anyway.

I would advise not twiddling anything until you've tried it with the engine running anyway :)

Ros

[dokterdave]

Having installed a pair of air horns on my bike, through a relay, the main feed has blown a 10amp fuse
Does anyone know the fuse rating for a typical air horn compressor.

[viper]

they do draw more than 10 amps, ideally you should read the instructions to obtain the correct rating but if not try a 20 amp fuse, the horns maybe rated to draw more than this, anything up to 30 amps is possible, anyway try 20a for now

[Zebedee]

If they are Nautilus then 15A should cover it mine are a copy and 10A is fine I would check the draw with an Amp meter if they blow the 15A mate