dirtbike hidden kill switch

[breakdirt916]

trying to google them for kickstart only/dirtbikes

so you just hook up a toggle switch parallel to the kill switch?

I might also mount an ignition cylinder to the triple clamps and have it run wires into a random harness and not hook into anything, ha

also:
-if a thief wants it, they will get it
-doesn't keep people from rolling it away (going to use disc lock)
-doesn't keep a couple guys from lifting it into a truck (looking for an easy way to transport a chain lock on the bike)
-it has comprehensive insurance

[ɹǝʍoןandɹǝʍoן]

That's how I had my street legal bike set up. Parallel with the kill switch, a closed switch will not allow it to start, an open switch will.

[Kurlon]

You can get a lockset and key for a CRF50 / CRF70 that wires in like a kill switch, so when you turn it off, as long as they don't know to just unplug it, it's off.

[loudbeard]

Series, not parallel.

[xrocket21]

Could you do something as simple as a toggle switch for the ground to the coil?

[Kurlon]

On most dirtbikes, that's all the kill switch does, it grounds out the ignition.

[sedanman]

Series, not parallel.

Parallel.

[loudbeard]

Parallel.

Maybe I'm missing something, but wiring it in parallel accomplishes nothing.

[loudbeard]

Yes, provided it isn't getting a suitable ground from it's mounting.

[Kurlon]

Pinned, I think where the confusion is coming from is the fact that there are two traditional modes of operation for kill switches.

On a closed to run setup, the kill switch in the run position completes part of the circuit. In that setup, series would be the right call, as once the hidden switch is off, the kill switch will never complete the circuit.

On an open to run setup, the kill switch sits open until you're ready to shut the bike off. To do so, you hit the kill switch which ties some portion of the ignition to ground, squelching the signal. For those setups, the hidden switch needs to be in parallel. That way it can ground out the signal no matter what the visible kill switch does.

[sedanman]

Maybe I'm missing something, but wiring it in parallel accomplishes nothing.

In series both switches need to close to ground out the ignition, if the kill switch is not depressed the bike will start. If the hidden switch is in the closed position the bike will shut off with the kill switch, If the hidden switch is in the open position the bike will not shut off at all. If the switches are in parallel then EITHER switch will ground out the ignition rendering the bike unable to start.

[loudbeard]

Pinned, I think where the confusion is coming from is the fact that there are two traditional modes of operation for kill switches.

On a closed to run setup, the kill switch in the run position completes part of the circuit. In that setup, series would be the right call, as once the hidden switch is off, the kill switch will never complete the circuit.

On an open to run setup, the kill switch sits open until you're ready to shut the bike off. To do so, you hit the kill switch which ties some portion of the ignition to ground, squelching the signal. For those setups, the hidden switch needs to be in parallel. That way it can ground out the signal no matter what the visible kill switch does.

This would be the part I would consider myself to be "missing." My explanation comes from an assumption that the regular kill switch is normally closed, as you said. This comes from a place of doing electrical controls for 12+ years, not from a place of having extensive knowledge of a dirt bike's wiring system. Thanks for filling in the gaps.

In series both switches need to close to ground out the ignition, if the kill switch is not depressed the bike will start. If the hidden switch is in the closed position the bike will shut off with the kill switch, If the hidden switch is in the open position the bike will not shut off at all. If the switches are in parallel then EITHER switch will ground out the ignition rendering the bike unable to start.

Read above.

[sedanman]

I was probably typing as the above was posted.