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hi have a uk tank for sale if anyones interested along with the uk brown seat  tank has been resprayed v good paint. seat is good no rips thanks

I have placed an order for the new wiring harness.  I will let you know how it goes before next SPRING!!!!

Thanks for your help.  Paul.

Hi,
There aren't any relays. There is a multi-connector in the headlight that feeds the rear tail/running light and the front pilot/park/running? light. As you initially said that none would work I was asking if the pilot light lit as this would be an initial indication that the feed was live (at least up to the connector).
So is your rear running light now ok? Just the brake circuit to sort?
A quick suggestion, to check the rear circuit would be to pull the two wires of the switch (at the rear pedal) and touch them together and see if the light works. The rear switch is vulnerable to road crap and is a fairly cheapy/nasty setup. You can also check here that you have 12v at the switch.
As the front and rear brakes both connect to the same circuit to the light it sounds like possibly both switches are playing up, but should work independantly. The front light switch, I believe, is a mechanical switch in the area of the front brake lever which I'm not familiar with, my 79 is a hydraulic pressure switch, so I'm  also guessing the wiring didn't change much between yours and my wiring diagram?
Stevie.P

Have a multi meter. Checked inside the head light shell, no relay. Looking under the side panel on the right side to see if the relay is there.
Head light works, turn signals work,  switches work,  just no brake light...front or rear.
Magnum05

Magnum05
Do you have an electrical test meter or 12volt voltage tester?
Stevie.P

It's a custom light...three wires, the instructions, etc. are in Japanese. The bulb reversal thing is not the problem. I'll check the headlight connector
now.
Thanks,
Magnum05

I have the underslung rear brake and RH Smiths speedo drive, but since 79 (fitted under warranty within months of new) Veglia clocks.
Mine is PA, November 78 build (13 months before WayJays XB build), so you got the Christmas 78 extra.
Mine also came with fork gaiters which the 79 shouldn't have had, it should have had bare legs with the rubber scraper/buffer things (the old 'what's left in the parts bin' syndrome).
Stevie  

Hi guys--Gee, on my 79 140e  (xb257**) , it came stock with Veglia speedo drive on left , and caliper over slung (above axle )on left.   since I hate Veglia senders, I am not running one , so I made spacers to achieve the desired disc location AFTER correcting the distance between the swing arm axle lugs to factory spec--I think it is about 8&1/8th", but if I remember, it is some weird thing like 8.1780"--I can find the exact spec if you want --there also may be some parallelism problems-like mine--reply if you want more info--Kindest regards, WayJay
 

Hi Jeff, that's interesting,mine has the same set up as yours (speedo drive on left, overslung caliper). I thought mine had been altered by a previous owner?
My engine number is CA204** which is March 79, I thought it should have an underslung caliper?

Good call Ed.
You're right about the possibility of bulb reversal, it seems to be a rising problem, seem to follow increasing numbers of cars with this error. Some people obviously don't realise that the bayonet pins are at different levels, but they must use a bit more than light force to get it in reversed though.
My initial line of thought was to gain the wiring layout of the offending light and we could sort of both be right? Could be the wiring and filaments, as in, maybe the brake and tail/running feed wires are crossed? 
Stevie.P

Slightly moving sideways, I also seem to follow a lot of 'young'? riders who either ride with their foot on the rear brake pedal or have a badly adjusted pedal as they ride with their brake light permanently lit. 

What threw my neighbor on his boat trailer lights was that he had the brake light and tail light reversed.....What was happening is that the brake light bulb burning all the time was so bright that he could not see the tail  light function going on and off..as they were reversed.....Good Luck ---
 
Don't worry ,Stevie is good at problem solving and word pictures and he's hot on the trail