EX250J is 2008+ new-gen model with single-plug ignitor

MartynNZ · November 26th, 2023, 08:05 PM

Hi
We are still having troubles sorting the electrical system on our Ninja engine that has been fitted to an off roader.

The Sparky is having a challenge with the wiring diagram and can’t find where Grey and Green/black wires go from the igniter. He assures me he has bypassed the anti-theft part of the wiring.

Everything is working except getting a spark at the plugs

Voodoo dad · November 30th, 2023, 08:08 AM

I'm having the same problem. It seems no one, so far, knows how to wire that. FYI, I was told you don't need any of the diodes because they were part of the anti-theft feature. I'm building a race car so I only need ignition and charging wiring.

Triple Jim · November 30th, 2023, 08:58 AM

Quote:

Originally Posted by Voodoo dad

I'm having the same problem. It seems no one, so far, knows how to wire that. FYI, I was told you don't need any of the diodes because they were part of the anti-theft feature. I'm building a race car so I only need ignition and charging wiring.

From the schematic I'd say the diodes are for the safety switches. The 150 ohm resistor in the grey wire from the ignition switch to the ignition module is the anti-theft device. I asked you about that resistor in your thread, but you haven't answered yet.

Voodoo dad · November 30th, 2023, 07:31 PM

Haven't tried the resistor. I'm going to get a whole harness, then cut off what I don't need. In the end, that will be easier.

Triple Jim · December 1st, 2023, 05:47 AM

Quote:

Originally Posted by Voodoo dad

Haven't tried the resistor. I'm going to get a whole harness, then cut off what I don't need. In the end, that will be easier.

The resistor is right at the ignition switch, so I doubt if the harness will have it.

Voodoo dad · December 1st, 2023, 08:07 AM

Thanks Jim, I may go with the factory key switch too. I've completly wired two hot rods and several vacuum tube guitar amplifiers and never had so many questions as I've had with this project. It's all good though. It's not like I'm trying to trouble shoot the Large Hadron Collider. I still can't believe there isn't a simple ignition schematic out there somewhere. Thanks again.

Triple Jim · December 1st, 2023, 08:50 AM

Quote:

Originally Posted by Voodoo dad

Thanks Jim, I may go with the factory key switch too. I've completly wired two hot rods and several vacuum tube guitar amplifiers and never had so many questions as I've had with this project. It's all good though. It's not like I'm trying to trouble shoot the Large Hadron Collider. I still can't believe there isn't a simple ignition schematic out there somewhere. Thanks again.

The Kaw manual has wiring diagrams, as does the WIKI: https://ninja250.info/wiki/Wiring_sc...s_%26_diagrams

I've build some tube amps myself. Are you on any of the guitar boards?

Voodoo dad · December 1st, 2023, 09:21 AM

Thanks Jim. I've seen some of those schematics elsewhere, and some are new to me
and one of them will be quite helpful. I'm in Prescott, AZ and the "gokart" project is in Bozeman, MT where my son lives. We worked on it last week and my son will continue to work on it till the Spring when I'll go back and we hopefully will get it running. P.S. I'm not on any guitar boards. I've got too many projects/hobbies already. I am kind of an old guitar equipment nerd. I've got pics of the gokart, if interested.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Next Gen oil screen cover/drain plug	Shafer	Items Wanted	3	November 22nd, 2022 03:40 AM
Wanted EX250J harness plug and wire pigtail for CDI	floggolf	Items Wanted	1	November 20th, 2022 10:26 PM
Single swingarm new gen ninjette mod	richierich781	General Motorcycling Discussion	16	June 29th, 2009 04:57 PM

November 30th, 2023, 08:08 AM	#2
Voodoo dad ninjette.org newbie Name: Leo Location: Prescott, AZ Join Date: Nov 2023 Motorcycle(s): 2009 Ninja 250r Posts: 5	I'm having the same problem. It seems no one, so far, knows how to wire that. FYI, I was told you don't need any of the diodes because they were part of the anti-theft feature. I'm building a race car so I only need ignition and charging wiring.

November 30th, 2023, 07:31 PM	#4
Voodoo dad ninjette.org newbie Name: Leo Location: Prescott, AZ Join Date: Nov 2023 Motorcycle(s): 2009 Ninja 250r Posts: 5	Haven't tried the resistor. I'm going to get a whole harness, then cut off what I don't need. In the end, that will be easier.

December 1st, 2023, 08:07 AM	#6
Voodoo dad ninjette.org newbie Name: Leo Location: Prescott, AZ Join Date: Nov 2023 Motorcycle(s): 2009 Ninja 250r Posts: 5	Thanks Jim, I may go with the factory key switch too. I've completly wired two hot rods and several vacuum tube guitar amplifiers and never had so many questions as I've had with this project. It's all good though. It's not like I'm trying to trouble shoot the Large Hadron Collider. I still can't believe there isn't a simple ignition schematic out there somewhere. Thanks again.

December 1st, 2023, 09:21 AM	#8
Voodoo dad ninjette.org newbie Name: Leo Location: Prescott, AZ Join Date: Nov 2023 Motorcycle(s): 2009 Ninja 250r Posts: 5	Thanks Jim. I've seen some of those schematics elsewhere, and some are new to me and one of them will be quite helpful. I'm in Prescott, AZ and the "gokart" project is in Bozeman, MT where my son lives. We worked on it last week and my son will continue to work on it till the Spring when I'll go back and we hopefully will get it running. P.S. I'm not on any guitar boards. I've got too many projects/hobbies already. I am kind of an old guitar equipment nerd. I've got pics of the gokart, if interested.