What am i doing wrong?

jbraz7 · January 28th, 2014, 05:13 PM

I have a 1991 Ninja 250 Project and the ignition key switch is broken. I jumpered the wires at the 5 Pin connector and it worked once. I connected the blue and red wires and connected the White, Yellow, and Brown wires together, and it worked and I started the bike once. Now when I do it I get no dash lights or anything. I tried connecting the 5 pin connector with the broken ignition switch and juggled it with a screw driver and I got the lights to come on. This connection isn't stable so thats why I went to the jumper but my question is why wont the jumper work anymore? is there something else in the key switch that needs connected?

jbraz7 · January 28th, 2014, 05:14 PM

I have a 1991 Ninja 250 Project and the ignition key switch is broken. I jumpered the wires at the 5 Pin connector and it worked once. I connected the blue and red wires and connected the White, Yellow, and Brown wires together, and it worked and I started the bike once. Now when I do it I get no dash lights or anything. I tried connecting the 5 pin connector with the broken ignition switch and juggled it with a screw driver and I got the lights to come on. This connection isn't stable so thats why I went to the jumper but my question is why wont the jumper work anymore? is there something else in the key switch that needs connected?

alex.s · January 28th, 2014, 05:18 PM

it needs a resistor

jbraz7 · January 28th, 2014, 05:22 PM

How do I get around that? or could I add a resistor to my jumper wires?

alex.s · January 28th, 2014, 05:26 PM

did you steal this bike?

jbraz7 · January 28th, 2014, 05:28 PM

haha no, its not even a bike I was given a ninja 250 motor, wiring harness, gauges, and headlight and I'm building a go kart

jbraz7 · January 28th, 2014, 05:29 PM

and im building it as cheaply as possible, and don't really wanna buy a new key switch.

Ducati999 · January 29th, 2014, 09:13 AM

Look around this website for a wiring diagram of your year and it will tell you the color wire and OHM of the resistor. I had to this very thing when i got my SV650. The seller had lost the key and it was really easy to go to Radio Shack to buy the proper resistor ($2.00) and get it working

jbraz7 · January 29th, 2014, 09:47 AM

Thanks! I can't seem to find the resistor in the wiring diagram? and I know the 2008+ had them like 100ohm or something but I cant find it a 1991.

Ducati999 · January 29th, 2014, 09:50 AM

I dont know if you can send me the wiring diagram but i am an electronics guy so i will apply my Google fu and see what i can find please stand by.

jbraz7 · January 29th, 2014, 09:55 AM

Im not sure how to post pics.. But Im looking at the switch diagram and for the run it says blue and red wires are connected and the White, Yellow, and Brown wires are connected. I don't see any resistor, unless its somewhere else on the bike not on the ignition switch?

Thanks so much for your help! your really helping the forum keep its "friendliest ninja 250 forum" name!!

Ducati999 · January 29th, 2014, 09:58 AM

Here is what I have found on this site.

The '93-07 models have a 100Ω resistor in the ignition that acts as a theft deterrent. You'll have to bypass this resistor:

brown => white
brown => 100 ohm resistor => grey

I do not know if this is the exact same for the 'J' models, though I'm confident that the resistor is still there.
__________________________________________________
Hope this helps you out keep me posted

jbraz7 · January 29th, 2014, 10:00 AM

So I need a 100ohm resistor between the brown and white wires?

Ducati999 · January 29th, 2014, 10:02 AM

From what I learned on the SV you have to put power thru the resister into the GREY wire which should feed the CDI box. There is a chip (of sorts) in there which reads the properly decreased voltage and allows the rest of the electronics to do their job. You may have just gotten lucky the first time or it may have malfunctioned. I would get two different amperage resisters at the store. I remember that the smaller one would not work on my Suzuki but the larger amp one worked fine.

jbraz7 · January 29th, 2014, 10:06 AM

Awesome! Thank you so much!!

Ducati999 · January 29th, 2014, 04:09 PM

How did you make out did it run or not

jbraz7 · January 29th, 2014, 04:43 PM

I haven't gotten a chance to try it..

I probably wont until Friday afternoon. So if I just cut the grey wire going into the CDI box and add in the resistor would that work?
Ill let you know how it turns out! thanks again!

the big mike · January 30th, 2014, 05:21 AM

a go kart?

sweet!!!!! pics?

jbraz7 · January 30th, 2014, 11:42 AM

Yup its really ugly.. its like half lawn mower. Im getting my ignition problem figured out tomorrow and then i gotta run some cables for pedals and it will be ridable. Im not sure how to post pics or i would

allanoue · January 30th, 2014, 01:04 PM

Quote:

Originally Posted by jbraz7

Yup its really ugly.. its like half lawn mower. Im getting my ignition problem figured out tomorrow and then i gotta run some cables for pedals and it will be ridable. Im not sure how to post pics or i would

FYI
http://www.ninjette.org/forums/faq.p...b3_attachments

onequicktang · December 18th, 2014, 08:50 AM

Quote:

Originally Posted by jbraz7

haha no, its not even a bike I was given a ninja 250 motor, wiring harness, gauges, and headlight and I'm building a go kart

I am doing the exact same thing right now with the exact same issue. Power to everything but no spark!

Ninja'n · April 27th, 2016, 09:50 PM

Working on a 1986 250 do you happin to know what resister works for it and on what wire

InvisiBill · April 28th, 2016, 05:17 AM

https://www.ninjette.org/forums/showthread.php?t=126626

January 28th, 2014, 05:13 PM	#1
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	What am i doing wrong? I have a 1991 Ninja 250 Project and the ignition key switch is broken. I jumpered the wires at the 5 Pin connector and it worked once. I connected the blue and red wires and connected the White, Yellow, and Brown wires together, and it worked and I started the bike once. Now when I do it I get no dash lights or anything. I tried connecting the 5 pin connector with the broken ignition switch and juggled it with a screw driver and I got the lights to come on. This connection isn't stable so thats why I went to the jumper but my question is why wont the jumper work anymore? is there something else in the key switch that needs connected?

January 28th, 2014, 05:14 PM	#2
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	What am i doing wrong? I have a 1991 Ninja 250 Project and the ignition key switch is broken. I jumpered the wires at the 5 Pin connector and it worked once. I connected the blue and red wires and connected the White, Yellow, and Brown wires together, and it worked and I started the bike once. Now when I do it I get no dash lights or anything. I tried connecting the 5 pin connector with the broken ignition switch and juggled it with a screw driver and I got the lights to come on. This connection isn't stable so thats why I went to the jumper but my question is why wont the jumper work anymore? is there something else in the key switch that needs connected?

January 28th, 2014, 05:18 PM	#3
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	it needs a resistor __________________________________________________

January 28th, 2014, 05:26 PM	#5
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	did you steal this bike? __________________________________________________

January 28th, 2014, 05:28 PM	#6
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	haha no, its not even a bike I was given a ninja 250 motor, wiring harness, gauges, and headlight and I'm building a go kart
	1 out of 1 members found this post helpful.

January 28th, 2014, 05:22 PM	#4
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	How do I get around that? or could I add a resistor to my jumper wires?

January 28th, 2014, 05:29 PM	#7
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	and im building it as cheaply as possible, and don't really wanna buy a new key switch.

January 29th, 2014, 09:13 AM	#8
Ducati999 ninjette.org certified postwhore Name: Ant Location: Wooster Join Date: Dec 2013 Motorcycle(s): Ducati 999 2012 Ninja 250r Ducati748 Yellow finally running 2003 SV650 S (SOLD) Posts: A lot.	Look around this website for a wiring diagram of your year and it will tell you the color wire and OHM of the resistor. I had to this very thing when i got my SV650. The seller had lost the key and it was really easy to go to Radio Shack to buy the proper resistor ($2.00) and get it working

January 29th, 2014, 09:47 AM	#9
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	Thanks! I can't seem to find the resistor in the wiring diagram? and I know the 2008+ had them like 100ohm or something but I cant find it a 1991.

January 29th, 2014, 09:50 AM	#10
Ducati999 ninjette.org certified postwhore Name: Ant Location: Wooster Join Date: Dec 2013 Motorcycle(s): Ducati 999 2012 Ninja 250r Ducati748 Yellow finally running 2003 SV650 S (SOLD) Posts: A lot.	I dont know if you can send me the wiring diagram but i am an electronics guy so i will apply my Google fu and see what i can find please stand by.

January 29th, 2014, 09:55 AM	#11
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	Im not sure how to post pics.. But Im looking at the switch diagram and for the run it says blue and red wires are connected and the White, Yellow, and Brown wires are connected. I don't see any resistor, unless its somewhere else on the bike not on the ignition switch? Thanks so much for your help! your really helping the forum keep its "friendliest ninja 250 forum" name!!

January 29th, 2014, 09:58 AM	#12
Ducati999 ninjette.org certified postwhore Name: Ant Location: Wooster Join Date: Dec 2013 Motorcycle(s): Ducati 999 2012 Ninja 250r Ducati748 Yellow finally running 2003 SV650 S (SOLD) Posts: A lot.	Here is what I have found on this site. The '93-07 models have a 100Ω resistor in the ignition that acts as a theft deterrent. You'll have to bypass this resistor: brown => white brown => 100 ohm resistor => grey I do not know if this is the exact same for the 'J' models, though I'm confident that the resistor is still there. __________________________________________________ Hope this helps you out keep me posted

January 29th, 2014, 10:00 AM	#13
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	So I need a 100ohm resistor between the brown and white wires?

January 29th, 2014, 10:02 AM	#14
Ducati999 ninjette.org certified postwhore Name: Ant Location: Wooster Join Date: Dec 2013 Motorcycle(s): Ducati 999 2012 Ninja 250r Ducati748 Yellow finally running 2003 SV650 S (SOLD) Posts: A lot.	From what I learned on the SV you have to put power thru the resister into the GREY wire which should feed the CDI box. There is a chip (of sorts) in there which reads the properly decreased voltage and allows the rest of the electronics to do their job. You may have just gotten lucky the first time or it may have malfunctioned. I would get two different amperage resisters at the store. I remember that the smaller one would not work on my Suzuki but the larger amp one worked fine.

January 29th, 2014, 10:06 AM	#15
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	Awesome! Thank you so much!!

January 29th, 2014, 04:09 PM	#16
Ducati999 ninjette.org certified postwhore Name: Ant Location: Wooster Join Date: Dec 2013 Motorcycle(s): Ducati 999 2012 Ninja 250r Ducati748 Yellow finally running 2003 SV650 S (SOLD) Posts: A lot.	How did you make out did it run or not

January 29th, 2014, 04:43 PM	#17
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	I haven't gotten a chance to try it.. I probably wont until Friday afternoon. So if I just cut the grey wire going into the CDI box and add in the resistor would that work? Ill let you know how it turns out! thanks again!

January 30th, 2014, 05:21 AM	#18
the big mike ninjette.org sage Name: Michael Location: Belgium Join Date: Apr 2011 Motorcycle(s): 2008 Ninja 250r, Fazer8 Posts: 580	a go kart? sweet!!!!! pics? __________________________________________________ I can not be a true player by playing around.

January 30th, 2014, 11:42 AM	#19
jbraz7 ninjette.org member Name: jayden Location: tulsa ok Join Date: Jul 2012 Motorcycle(s): 2008 ninja 250ex, 1990 Yamaha Vmax 1200, 1991 Ninja 250 Go Kart Posts: 18	Yup its really ugly.. its like half lawn mower. Im getting my ignition problem figured out tomorrow and then i gotta run some cables for pedals and it will be ridable. Im not sure how to post pics or i would

April 27th, 2016, 09:50 PM	#22
Ninja'n ninjette.org newbie Name: Arron Location: Sapulpa Join Date: Apr 2016 Motorcycle(s): Trying to fix my little cousin's bike he just got it 1st bike 1986 250 Posts: 2	Working on a 1986 250 do you happin to know what resister works for it and on what wire

April 28th, 2016, 05:17 AM	#23
InvisiBill EX500 full of EX250 parts Name: Bill Location: Grand Rapids-ish, MI Join Date: Jul 2012 Motorcycle(s): '18 Ninja 400 • '09 Ninja 500R (selling) • '98 VFR800 (project) • '85 Vulcan VN700 (sold) Posts: A lot. Blog Entries: 1 MOTM - Aug '15	https://www.ninjette.org/forums/showthread.php?t=126626 __________________________________________________ * Unregistered, I'm not your mom and I'm not paying for your parts, so do whatever you want with your own bike. *

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