Kill Switch Usage?

Fred F.

Supercharged
Joined
Aug 13, 2009
Messages
205
Location
Spring Lake, Michigan
I read something in a post awhile back about only using the kill switch in an emergency. Is using it more often a bad thing ? Fred
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
 
I don't see anything wrong with it.

However, I would offer up a better alternative.

I use the sidestand switch to kill the engine. That way I am assured that the sidestand is down prior to dismounting. Yes, I learned the hard way on a previous bike. :oops:
 
I can't remember now what the post was about, but the person with the problem said he hadn't been using the kill switch a lot per the owners manual (which I don't have, only the shop manual). What I like to do is hit the door opener and then the kill switch so the motor is off when I go into my pole building to keep the exhaust fumes down. Fred
 
I was in a hurry one day when I had my Speedmaster, I hit the kill switch, kicked the sidestand down, and hopped off... well, I thought I kicked the sidestand down :oops: Good thing it happened w/ speedy instead of the rocket. I don't think I'd have been able to catch the rocket.
Back on topic...
I read somewhere on here before that you should always turn off the bike w/ the key. Something about hitting the kill switch can mess w/ the electronics... I dunno... just something I remember reading on here.
 
I do remember reading in the forum in 2005/2006 of a problem where using the kill switch screwed up some mappings/timing for the bike and people were resetting it using the 12 minute tune.

I occasionally end up using it but for the most part i turn it off with the key myself.
 
I never use the kill switch on any bike. Always turn the key off. Don't have to worry about accidentally leaving the ignition on.

Kickstand will either go down before, or after the key is turned off. Kickstand is NEVER forgotten.
 
As far as I can tell the kill switch works with a positive power wire to the alarm connection and the sidestand works with a negative connection to the ECU. So I am thinking the sidestand switch tells the computer to shutdown and the kill switch just shuts it down without asking the computers permission.
 
This is what the owners manual says -

"Although the engine stop switch stops the engine, it
does not turn off all the electrical circuits and may
cause difficulty in restarting the engine due to a
discharged battery.
Ordinarily, only the ignition switch should be used to
stop the engine."

The same thing applies to my speed triple.
 
It was my belief, and I BELIEVE that I had the experience, that using the kill switch COULD in certain extremes of temperature or whatever, fool the ICU into not knowing where it left off, then the idle is screwed when you restart the bike. My old Bonnie, always the kill switch on the Right Bar, 'cause the key is tucked away on the left of the headlight. On my speed triple I had this problem more than once, and at least twice on the ROCKET.

My belief is that if you have just done something abrupt with the throttle, revved it for example, and let it snap shut, the TPS is holding it open a crack to prevent the engine dying until it settles down. If you kill it at the same time, the power is cut with the TPS slightly open. Then when you start up, it thinks that is zero. If it is all screwed up, all you have to do is shut it off with the key, open the throttle and let it snap shut, then restart the motor. All is happy again.

That DOES NOT mean it is true, but it is what I heard, it seemed to be true, and so I quit using the kill switch. Maybe I was rolling on some throttle also, that will definitely screw the idle when you are starting. I don't use the kill switch and I try to keep from opening the throttle when I fire it up. Seems to work OK.
 
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