LED Headlight shut off as RPM climb

[Madathlon]

OKay, So I tore into the Scooter. Now here what I found. The Headlight, Dash and marker lights were all driven from the AC side of the Voltage Reg.

So here what I did.

After removing all the plastic I found the AC feed to the Hi/Low switch and cut it.

I then went to the main SW and found Consent 12vDC and switched 12vDC. Then I found an goos spot to mount an 12 VDC Automotive 5-Pin Relay SPDT.

I used 12g wiring and wired the relay into the main SW so that as I turned on the scooter the headlight with received power now from an independent 12vDC power source. and then from the relay I ran a wire up to the Hi/Low switch.

So there the easy fix to the flicker issue.

[bnc]

Oh I see what you mean. They use the the AC side of the voltage regulator, have a diode somewhere that converts it to an unregulated DC which is why there is flickering.

I have a bike where the manufacturer does something similar to what you are doing but they do this. They use the unregulated DC to turn on the relay which then connects the battery/voltage regulator output to the headlight. That way, the headlight remains off until the bike starts saving all the battery energy for the starting process.

[Madathlon]

Originally Posted by bnc

Oh I see what you mean. They use the the AC side of the voltage regulator, have a diode somewhere that converts it to an unregulated DC which is why there is flickering.

I have a bike where the manufacturer does something similar to what you are doing but they do this. They use the unregulated DC to turn on the relay which then connects the battery/voltage regulator output to the headlight. That way, the headlight remains off until the bike starts saving all the battery energy for the starting process.

I had thought about that, but with the unstable voltage the relay would also be unstable.