I bought one last year for my TDR project as it strangely didn't have one when I got it and from memory it was around £45 from ebay UK which I thought was reasonable

@dan28
I don’t have a electric start. I have an 88 DTR125 Also my indicator relay is a 3 pin one behind the headlight. These 2 are 4pin. They control the sidestand kill switch, which the previous owner removed from my bike 🙄

PS modern bikes are a bit more solid state,...

I know it doesn’t sound right, and might not be as I stated it. I am sure that it is to stop you pulling away with the side stand down. 1 neutral switch, 1 relay. 1 sidestand switch 1 relay. It’s how old computers worked before solid state. On a newer bike the ecu would probably do the job...

@spookdog Hi mate, the wiring is currently stripped right back on the replacement unit. I think I may have it sorta resolved now, gonna fit it tomorrow and see if it runs!

@nenormaliuda Hello, welcome to the forum

Normally it's customary (polite) to introduce yourself before firing away questions. We're not your personal free mechanic.

The fact that you have multiple problems suggests something in the power supply chain.

Start simple, fuse, bad earth, ignition barrel faulty.

@ 140927064342 that’s the item number, sorry not too hot with computers

@atraiss Yeah, a dodgey connection though? When you're going over bumps and stuff. Doesn't sound ideal.

@kevin
Brake light should run off the battery as well. Though not the tail light...

@liquid-snake Well 18Vs at the battery is likely to fry some components. Not sure if the voltage is regulated after the stator.

So definitely get the right measurements first.

The bike should have a high 12V supply across the leads. This will actuate the motor on ignition on.

Also sometimes the motor is weak and/or there is some other problem. So just try removing the powervalve cables from the powervalve and operate it under no load. It might be fine.

So make sure there is enough voltage and remove any load from the motor.

Hello and Welcome,

I am not familiar with that diagram, but surely you just need to read the pin out schematics from the Haynes?

Although these days why bother when you can get programmable ignition systems cheap enough. I don't see the reason to add to any complexity.

@spookdog I don't know what those are for, but there is one on the DTRE that I don't know what they are.

I think there was an OEM alarm system that plugs into it though.

@dan28
I have an early 1988 type loom, the only lights that run off the battery are brake and indicators...

Anyone had any problems with using halogen bulbs? As opposed to the big round old fashioned bulb? (which the early Dtr uses) I just wondered if they can cause heat damage at all?...