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« on: 17 July, 2021, 20:39:26 »
Hi all, Firstly, please understand that I know very little about electrics but lets face it on this bike they are pretty basic. My machine has a 6 volt Lucas horn, similar to the one shown in SS 807 except that there is just one screw in the back, the notched adjustment screw. The horn was working fine with a good loud vibration. Now, on the machine, when I press the horn button I just get a soft beep and no vibration. I have fitted a new chrome front ring, domed nuts, and tone disc, which has been painted to match the rest of the bike. I am using 2 new style 6 volt 4.5 amp/hrs batteries, wired to give a capacity similar to the old black box type, but the horn has worked fine with these. I have not moved anything behind the tone disc (the screw and locking collar etc). When I remove the horn and bracket assembly, mount it in a vice and wire it direct to just one of the 6 volt batteries, as soon as I touch the terminals I get a very loud sound and vibration (maybe too loud). With everything back on the bike, the horn goes back to the soft beep and no vibration. Can anyone suggest what the problem maybe and how I could sort it? Thanks for reading.