HPI wiring

JEDED OUT CasseroLLErs /

does anyone out there know of a way to wire in the break light when using an hpi that only offers one yellow wire for lights? i have been at this for a week now and have tried 3 different ways and still no luck

when i hook it up and activate brake the head light and tail running light turn off.

this is the hpi i am using

puch-mini-rotor-210K012-2T.jpg

Re: HPI wiring

What bike? If the bike had the brake light circuit setup as a safety feature your going to need different switches.

Re: HPI wiring

JEDED OUT CasseroLLErs /

its on a derbi flat reed

Re: HPI wiring

Do you have the right switches? Some setups require closed-at-rest switches some require open. That could throw you off. I don't see any reason they would be wired differently than any other brakes, so must be grounding something out when you pull the brakes

Stator>switch a

Switch a> switch b

Switch b> stop light

Re: HPI wiring

JEDED OUT CasseroLLErs /

my brake sw are N/O

Re: HPI wiring

Fuck, I just wired one and trying to remember.....

Re: HPI wiring

JEDED OUT CasseroLLErs /

my tail light is an LED one that has black wire for ground, blue wire is stop light and red wire is running light.

Re: HPI wiring

yellow wire should split into three wires...

-Wire one to headlight

-Wire one to tail light

-Wire one to N/O brake switch, then to brake light. Or it could go vice versa and you break the ground rather than supply power.

Re: HPI wiring

MAX LGN FTW. Yep, you just split the wire into three. And then make sure that the head and tail have a ground. I like to run power into both sides of the switch and then a wire out of each switch that joins somewhere, and goes all the way back to the brake light. I cannot remember if you need closed or open brake light switches for it to work. though.

Re: HPI wiring

Charles McCusker /

> Dave Steele Wrote:

> -------------------------------------------------------

> MAX LGN FTW. Yep, you just split the wire into three. And then make

> sure that the head and tail have a ground. I like to run power into

> both sides of the switch and then a wire out of each switch that joins

> somewhere, and goes all the way back to the brake light. I cannot

> remember if you need closed or open brake light switches for it to work.

> though.

Are you saying run your brake light wire to both brake light switches then run em both back to the taillight?

Re: HPI wiring

You can either run power in and power out to each switch, or you can run a connector wire between the switches like many stock bikes do. I find the first way just easier and it creates a redundancy.

Re: HPI wiring

I would certainly suggest running a complete new wiring harness for the bike if you haven't already. Run yellow to both the voltage regulator and a flasher (also then run yellow from the voltage regulator to both headlight and tail light or a switch on your bars). On both brake switches you will run 1 wire to the brake light, and the other to the flasher. Make sure your grounds are secure and secluded. When I brake, my headlight dims a little, but I am running 2, 35 watt halogens. Be sure you also have the trail tech voltage regulator to keep up with the hpi. Hit me up if you want a diagram or something.

Re: HPI wiring

Charles McCusker /

> Dave Steele Wrote:

> -------------------------------------------------------

> You can either run power in and power out to each switch, or you can run

> a connector wire between the switches like many stock bikes do. I find

> the first way just easier and it creates a redundancy.

I'm with you on the redundancy part. thanks man!

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