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nick.black
02-02-2009, 11:23 PM
Does anyone know if the TRX450ER 2007 needs a Normally Closed or a Normally open kill switch? I have no wiring diagram and cannot find one anywhere.
02-03-2009, 12:03 AM
normally open...
nick.black
02-03-2009, 12:06 AM
Damn - thanks.
SHIFTx450
02-05-2009, 02:56 PM
Huh? What is the difference? Can you elaborate? I have a killswitch on mine, didn't know there was more then one kind.. Hope its the right one ;-) It works fine..
nick.black
02-07-2009, 10:25 PM
I guess if yours is working you have the right one.
Normally open and normally closed refers to the wiring as far as I am aware. The TRX450ER 2007 needs a normally open, most other ATV's use a normally closed.
I installed a normally closed and the bike would only run when the tether is off. i.e. the opposite to what you would want.
SHIFTx450
02-08-2009, 10:39 AM
couldn't you just switch the wiring around instead of buying a totally different killswitch??
nick.black
02-08-2009, 09:27 PM
Thats what I thought but apparently not. I tried that. It has something to do with the wiring polarity I guess.
nick.black
02-08-2009, 09:29 PM
They wouldn't make Normally Open and Normally Closed kill switches if it was that easy!
I wish it was.
02-08-2009, 09:39 PM
normally open means the circuit is normally open...meaning that there is a break in flow...a tether that is normally open cut off the power when the circuit closes...

as far as i know, the 'zuki ltr450 is the only one with a normally closed tether needed..
02-08-2009, 09:54 PM
normally open means the circuit is normally open...meaning that there is a break in flow...a tether that is normally open cut off the power when the circuit closes...

as far as i know, the 'zuki ltr450 is the only one with a normally closed tether needed..
nick.black
02-08-2009, 10:09 PM
Actually the only ATV's that need Normally Open switches are the TRX450R, KFX90/50 and the Banshee. All others are normally closed.
This may vary by year but the above is valid for most bikes after '06.

This is according to Gunnar BTW.
02-08-2009, 10:52 PM
then why am i using the same tether on my 2000 400ex that i had on my 06 450r?

i think gunnar has a typo as the pro design(normally open) works with most atv's
miles Machine
02-09-2009, 04:10 PM
it also depends on which way you would wire it, there is a couple ways it can be done on each machine....usually normally open is used tho
nick.black
02-09-2009, 10:30 PM
Ok - the conclusion to this: I took the bike and the kill switch to a bike shop who knew what he was doing. 10 minutes later it worked.

Conclusion - you are all right, any switch will work but the wiring would have to comply with the NO or NC concept.
Lesson learnt - when dealing with electrics I need to use someone who know his stuff.

Good news is I am ready for the Baja on Friday. :eek2:

Thanks for your feedback.