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Motor Bicycle Safety Share safety tips for motorized bicycles. Some of these bicycle engines will reach great speeds and need respect.

kill switch


Discussion at Motorized Bicycle Engine Kit Forum in the Motor Bicycle Safety forum. My white to ground is my kill switch. It's been working for 8+ months. When my magneto goes, you ...
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Old 08-17-2008, 08:21 AM
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Default Re: kill switch

My white to ground is my kill switch. It's been working for 8+ months. When my magneto goes, you guys will be the first to know. Thinking electrically - is the magneto that whimpy?

When and if I use my white wire for power, I'll rethink my setup.
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  #12 (permalink)  
Old 08-17-2008, 12:28 PM
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Default Re: kill switch

Quote:
Originally Posted by pedalpower View Post
yep, now that my motor is mostly broken in I have to back out the idle screw another 1/4-1/2 turn so the choke kills it pretty quick. Also, I would like someone to post the schematics for a discharge capacitor like switch to use as a kill switch-or something that pulls enough watts to rob the spark etc.
then maybe it can be called a stop switch and not a "kill" switch.
But I don't use my choke at all. I used to choke up throttle till it quits.
No more.
Just turning my throttle down kills it.
And my throttle isn't so loose that when you let go it snaps back so I can keep it idling when I signal. (my throttle is on the left)

I do want to do the toggle to blue wire eventually. But I also want to keep my bike looking clean so it's in the back burner for now.
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Old 08-17-2008, 01:21 PM
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Default Re: kill switch

Since the beginning of engines grounding out the mag is the way of killing the mag it gives the current some place to go into, the frame, it will not hurt the mag or its systems, popping off the plug wire will do more harm if the plug wire can't discharge it's energy like its supposed to then it will fire its current possibly right out the side of the coil.
battery ignition's systems interrupt the flow of current.
choking the engine to stop is flooding it so bad that the spark plug can't fire. Gee Wally why isn't my engine performing so good and my plug is fowling out crumby ol china plugs. How many times have we heard that?
So go ahead and stop your bike how ever you want to.
I'll stick with a kill switch its saved my son a nasty wreak or a blown engine if he would have pulled in the clutch when the throttle stuck.
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Old 08-18-2008, 10:45 AM
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Default Re: kill switch

I don't have a kill switch because...it's broken and I haven't made up a replacement yet.

I will agree though, trying to monkey with the choke while moving is tough and a little risky. That's why I start my bike by picking up the rear and kick it over - I can just let it sit there and warm up, instead of riding it.
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