Electrics - home made defibrilator! Ouch.

[ArmandTanzarian]

I've just wired up the Jet. I tested all of the lighting circuits using a 12V power supply, all worked a treat.

Got the engine running. Started 2nd kick runs well. Ignition key cuts the engine correctly.


BUT!

The dip beam wasn't working with the engine running and when I fiddled with the wire I gave myself a dirty great shock

Somehow the high voltage from the ignition is getting to the headset. How can that happen? Surely the green wire from the coil and up to the ignition switch is just 12V.

The odd thing is it all runs fine apart from trying to stop my heart.

[coaster]

The couple of amps that your lights were pulling would be enough to give you a belt, not lethal but enough to keep you wary

[Daggs]

You would not receive as shock of a 'couple of amps' because that is the current being drawn by the lights.
The current passing through the body is determined by many factors relating to conductivity/resistance through the body.
A current of 200mA AC passing through the heart of a healthy human, would normally be fatal.
Assuming you are using a 12V conversion on the scooter and the Reg. is working. You must have made contact with the ignition High Voltage connection in the connector block.

[ArmandTanzarian]

You must have made contact with the ignition High Voltage connection in the connector block.

I didn't think that went up to the headset. I thought it was the low voltage side that went there.

[Daggs]

You must have made contact with the ignition High Voltage connection in the connector block.

I didn't think that went up to the headset. I thought it was the low voltage side that went there.

I didn't word that too clearly:
I'm still assuming a 12V AC conversion:
The green from the stator goes to the CDi then up to the headset ignition switch or cut-out button. This carries a punch and will make you jump if you touch it, as it can be quite a high voltage. Should you simultaneously touch it and the sooter body = ouch. I know i've done it ............ several times.