Bristol Mod Scooter Club

I have just fitted an air horn kit to my SX, unfortunately as I did not listen to our physics teacher at school ( Jim will pay testament to that !!) I havent the faintest idea how to wire them up. They are an Italian set and all I am left with now is a relay. Would appreciate any help from members who have wired their horns up so I can blast Bristol with the rest of you. Cheers

Dave

I assume they are 12 volt type that operate off the battery?

You will need a 12 v battery in the system.

Chris

Chris It is 12 volt but I dont have a battery.Presume I will have to get a small 12volt Yuasa Battery.

yep- should've paid attention in Physics!!!!!

These air horns pull quite a large current- hence the need for the relay system.

I would imagine that those batteries are up to the job, but its best to get some feedback from someone who has actually done the job using a totally seperate battery. You will need to ensure that the seperate battery is independantly charged on a regular basis, as the scooter system will not be connected to it

Chris

Danny at Scootopia has said he can do it so might pay me to take it to him

Dave would be a good idea to talk to Gerry hes our ace guy on anything with scoots

He's just done a few jobs on the scoot and got it MOT'd and it rides like a dream now so will take it to him and sleep easy at night !

Russ, cheers mate, I think he lives fairly close to me as well

an easy fix is to wire the air horns direct to the new battery with a foot operated switch in line.

You need to ensure that:-

1) there is sufficient "power" in the battery to operate the horns
2) the foot operated switch can handle the amount of power required ( I used to use the old foot operated dip switches that were common in cars in the 1960's)- if the switch isn't up to it then the electrical contacts will burn out
3) the battery can be recharged.

I know on some 12 v electronic systems there is an additional take off point on the regulater so you can charge your battery automatically- don't know if your set up has this or not.

As you have an electronic system, then you need to be 100% sure in your wiring- one wrong connection and you may blow the system!

Seek professional help IMO

Chris

Thanks to Gerry, the airhorns now work. Nice and loud as well. Looking forward to fitting some more soon