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?ModuleNo=37761&criteria=tilt%20switch&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 (http://uk.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=170854&N=401)) for a tenner.

http://uk.farnell.com/productimages/farnell/standard/42419350.jpg

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]

[butch890]

we got ours from jhp,
butch

[skidlids]

The TL1000S one worked well when I raced mine and crashed, probably quite cheap from a breakers and coped well on the race track. My CBR600 EX V&M bike also has the same one fitted to it and cuts the fuel pump feed when its on its side, stand it back upright and the feed is restored, so just press the start button and off you go again

[Felix]

So, Skids, are you saying all I need is one of them cut-out thingys and I'll be able to get going again after I crash. Blimey, that should be worth more than a tenner! :lol:

[antonye]

Totto,

If you need one I have a few in my spares bin so can send you one. Don't know if they're suitable but I can check the specs if you want. Let me know.

[Totto]

Ant what type have you got , switch that is :D

[antonye]

Not too sure but I know they're from RS.
I'll check when I get home and drop you a u2u.

[Totto]

Thankyou :bouncy:

[antonye]

Only ones I've got are 10° so not much use on a race bike!

[skidlids]

Originally posted by Felix
So, Skids, are you saying all I need is one of them cut-out thingys and I'll be able to get going again after I crash. Blimey, that should be worth more than a tenner! :lol:

No Felix, what I'm saying is that when I crash it allows ME to get going again as I have perfected the art of crashing as demonstrarted at round 1 race one of the 2005 Desmo Due Championship, and the final Keevil round of the NG 2002 SoT championship where after crashing at the end of the main straight I rode the bike back to the pits after the race had finisshed.
It takes a while but if you crash often enough you soon learn the Do's and Don'ts of crashing and when to stay with the bike or part company with it.
Its something you could go out and practice but I wouldn't recommend it.
Although from what I've seen I'm sure Troy Bayliss has spent a bit of time perfecting the art as demonstrated at a very wet Silverstone one year and in his 250GP ride a while back. Wayne Gardner was another who also quite good at restarting after crashing

[butch890]

OUrs are exactly the same as the factory ones ,the clip on the vertical framerail on the left side and use the redundant sidestand cutout connector,2 minute job to fit and engine restarts as soon as you get the bike upright (as tested by me at cadders!)
Butch

[Totto]

Butch , you mean it has the proper connectors on it from new !

Just a matter of plugging it in !

Any idea how much form JHP ?:roll:


Thanks all :bouncy: