Ducati Sporting Club UK > General > Idle Chat > Race bike tilt switches

[Totto]

You know the switch that kills the power supply to fuel injected engines if a motorbike is left on its side , well i am looking info on such an item
Some jap bikes have them fitted as std eg CBR600rr , SV1000 Some GSXR's
What i need to know is when the bike is placed on its side the ignition/power is cut & the engine will die , but when the bike is returned to vertical will the switch instantly power the bike up , i know it wont restart the bike but will it return power instantly
?

[antonye]

Should do - basic principle is a mercury tilt switch that has a blob a mercury in a tube covering two contacts. As the tube rotates, the mercury moves off the contacts and breaks the circuit. Return to the original position and the circuit is made again.

You could wire it in to act like the handle-bar mounted cut-out switch? Should be quite cheap from your local Maplins...
http://www.maplin.co.uk/Module.aspx?...itch& doy=7m2

[yeti]

Is this something required by regs then? As Ant says, doddler to wire up through the bar switch. If not Maplins, try RS.

[antonye]

Not required by ACU regs, but could be useful if you're having trouble getting to a bike laying on it's side but still running.

[yeti]

Originally posted by antonye
Not required by ACU regs, but could be useful if you're having trouble getting to a bike laying on it's side but still running.

Gotcha. The RS has one fitted vertically alongside the battery tray

[Jools]

Yep, as per the 'wheelie' thread you can get very cheap tilt switches from Maplin that switch off at various preset angles. They range all the way from 10 degrees (that would play havoc with your lean angles though) to 80-90 degrees by which time the bike would be on it's side

I would have thought that you could easily wire one of these in series with the kill switch, so that effectively the kill switch is automatically enabled and disabled. The kill switch cuts power to the FI system, the ignition and the starter motor if I remember right, so if the bike was on it's side all of this stuff would be disabled, pick it up again and everything should come back to life ready to start as soon as you hit the starter - unless you've totalled the bike of course

[Felix]

Totto, as the others have said they are very straightforward to add on. If wired in with your cut-out switch they will function just like you describe. Here is the one Ducati use on their race bikes and it is available from Farnells (tip over switch) for a tenner.



Make sure you mount it vertically with the wires exiting from the bottom. Usually it's mounting clip is riveted on the side of the battery tray.

[Jools]

That'll teach me to be typing at the same time as "fast fingers Antonye"

[yeti]

And nere's one I made earlier............

[Totto]

Thanks guy some very usefull information


[Edited on 7-2-2006 by Totto]