Vintage Dirt Bike Q & A

Wiring diagram Question
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Author:  Gokyo [ Sun Apr 30, 2017 12:02 am ]
Post subject:  Wiring diagram Question

I am putting a new right handle bar switch on my bike.

It is supposed to be a for a Mt250.

It does not have a kill switch.

The switch does the following
Headlight on
Headlight off

There are five wires
1. Black
2. brown and white
3. Yellow and white
4. Blue and white
5. Brown

So I matched them up like
1. Black to black that the horn is also plugged into
2. Brown and white to brown and white that my insturment lights are lugged into
3. Yellow and white to yellow and white and white (something to do wit the generarator)
4. Blue and white goes to other handle bar switch
5. Brown. I have no idea what to plug this into.
there is no other plug in the head light bucket for brown. It appears that brown is the rear running light.

I suspect that briown and white send power to the rear tail light and insturments when the bike is running.

and brown is supposed to provide power to the tail light when the bike is off but the switch is on.

Any body ever deal with this before?

I have included a picture of the switch

Screen Shot 2017-04-29 at 10.59.34 PM.png
Screen Shot 2017-04-29 at 10.59.34 PM.png [ 1.04 MiB | Viewed 695 times ]

Author:  Rick [ Wed May 03, 2017 10:14 pm ]
Post subject:  Re: Wiring diagram Question

I can figure this out for you as I went through it myself two years ago with my mt250. I need to go to the shop out back and do some digging. Reply here to remind me please.


Author:  Gokyo [ Thu May 04, 2017 11:41 pm ]
Post subject:  Re: Wiring diagram Question

thank you I appreciate it.

Author:  m@tt [ Thu Jun 08, 2017 3:58 pm ]
Post subject:  Re: Wiring diagram Question

It's not the right switch for the MT - it has a parking light function that wasn't present on the original so suspect brown powers the lights when in the P position on the bike the switch is intended for - everything else should works as you describe below
Is this not th case?

Only 4 wires on the MT switch - brown is not present

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