Hidden kill switch on my bike

[notme]

So did you get something sorted MDU?

I have ideas (and can help with the implementation!) - e.g. a magnetic switch, imagine if you needed a small magnet (kept on yer keyring) to be touched to a hidden spot on the bike to enable the ignition...... or if you had to press a hidden pushbutton a certain number of times - 3 presses in quick succession allows the bike to be started within the next 30 sec sorta thing.

Of course a plain old hidden switch that breaks the fuel pump or ignition line is fine too - do you still want help with the wiring of said switch?

[rat biker 08]

Have one on my bike kill switch just behind the head light . Or by a good padlock & chain stop it befor it starts

[awayatc]

I've heard that naked policemen have a 100% arrest rate in New Zealand - is this true?

cardiac arrest .....

[Disco Dan]

So did you get something sorted MDU?

I have ideas (and can help with the implementation!) - e.g. a magnetic switch, imagine if you needed a small magnet (kept on yer keyring) to be touched to a hidden spot on the bike to enable the ignition...... or if you had to press a hidden pushbutton a certain number of times - 3 presses in quick succession allows the bike to be started within the next 30 sec sorta thing.

Of course a plain old hidden switch that breaks the fuel pump or ignition line is fine too - do you still want help with the wiring of said switch?

I like that idea!

What sort of switch would be needed? Do they have a specific name?

[Coyote]

However I still think the cause of theft is firstly temptation. If you can avoid this factor of temptation from a would be thief, you have pretty much done all the work. Then after that comes further "obstacle's" to make it harder for them.

My bike looks like a piece of crap at the moment. Problem sorted

[rat biker 08]

Just a off on sweitch linked in to mane loop power simple but works

[PrincessBandit]

If you are going to bother with a hidden kill switch you might as well just spend $30 on a disc lock, either way its immobilised and they cant ride it away.

Still can be lifted rather than rolled if thieves have transport for it.

With a disc-lock being visible they could return with a means of dealing with it.

Wish it had been easy to deal with when I accidentally set mine with the key insert facing inward on the disk Was able to insert the key but it ran out of turn space to release the pin so I ended up having to have my lock key grip trimmed so as to manage to actually turn it. The lock removal guy wasn't able to cut the lock (but then maybe crims have better tools at their disposal - i wouldn't be at all surprised).

Great thing bout the late model Suzukis is they have an immobiliser system from the factory! Yep, ya gotta have the original key, which has a chip inside it giving off a reference signal which is recognised by the ECU.

For real??? or you pulling my tinkler?? (I am easily taken in, so hence my question).

[Macstar]

I put a kill switch on the KTM motard as it didn't have a key ignition - so anyone could have just pushed the start button and ridden off. Anyway, $15 push button style on/off switch from Cycletreads and located a strategically hidden place on the bike and whamo! No electrics without it.

I watched the mechanic fit the switch - it took him a maximum of 10 minutes. So total cost was around $30-40

[scumdog]

Its a great system - Suzuki copied it off HONDA.

Even ol' stone age Harlyes have that on their recent models, no need to actually put a key in the ignition at all, just get on the bike and hit the start buton - you'll know you forgot the key when the bike won't start!

[notme]

....... e.g. a magnetic switch, imagine if you needed a small magnet (kept on yer keyring) to be touched to a hidden spot on the bike to enable the ignition......

I like that idea!

What sort of switch would be needed? Do they have a specific name?

2 methods - 1 is a grunty enough magnetic switch to carry the current in whatever circuit you break, this means you just break the fuel pump or ignition line etc, then you need to place the magnet near the (hidden) switch before you ride. This is simple and cheap but has the disadvantage that you need to leave the magnet in place while riding, and you need a heftier switch.

The other method is a simple circuit where a relay is switched on by the magnet, so you touch the magnet to a certain place on the bike briefly then the ignition is good to go until the bike is next switched off - this way accidentally getting a magnet near the hidden switch while riding won't kill the ignition! This method is more complicated but the magnetic sensor can be anywhere since it is tiny and only carrying a small signalling current, and since you just touch the magnet briefly to some spot on the bike it is far less obvious than having a magnet stuck somewhere while riding.

IMHO if it was me pursuing a different sort of kill switch to the plain old hidden toggle that breaks the fuel pump line, I would go for a hidden push button that needs to be held for a few seconds or pressed a certain number of times. You could connect a pushbutton that needs to be held for x number of seconds quite simply with a resistor and cap type arrangement, or go to extremes and have a preset code i.e. 3 quick presses then 1 long then 2 short or whatever your imagination can come up with!

There's a balance in there somewhere though....some of these more exotic ideas may present problems when the bike is being serviced or whatever - if you have to explain to the shop how to start it rather than just flicking a hidden switch and having the bike start normally without them even needing to know it has a killswitch....

[FROSTY:Me]

Looking in my "boxobits" (whats left from my garagefullastuff). I pulled out a race tether kill switch.Wire it into your kill and then leave it permenantly attached to yer glove. So basicly they would need to bipass both the normal key ignition and the kill switch.-$40 bucks at yer local bike shop

[notme]

Here's a simple circuit I designed that will do the magnetic killswitch thing.

It works like this:
After breaking the fuel pump line or whatever ignition circuit you like -

1. Turn ignition switch on as usual
2. Bring a magnet close to the reed switch - the relay will turn on.
3. Ride, when you get where you're going turn off the ign switch as usual and the circuit resets.

If anyone actually installs this on their bike - make sure that the relay is capable of handling the current involved in whatever circuit you break, something like this is a good choice:

http://jaycar.co.nz/productView.asp?...Max=&SUBCATID=

For the reed switch, any normally open type is ok as long as it can handle the relay magnetising current - about 50mA so something like this is OK (and small enough to put anywhere!).

http://jaycar.co.nz/productView.asp?...Max=&SUBCATID=


I would epoxy it to the inside of a fairing somewhere. You can also use ones off house alarms, they are often sealed into a nice plastic housing with mounting tabs.



For the magnet you could set the smallest magnet you can find into a blob of epoxy on a keyring - i have some that are about 5mm discs, about 2mm thick that would be ideal.

The LED is optional to show that the system is ON.