Spark Plug not sparking? PLEASE HELP

nickk_pike · May 12th, 2015, 05:13 PM

I recently have bought all the parts to put together a 2008 Ninja 250R, (Risky) I am currently 16 years old and plan on mounting this engine in my current 150cc 7HP engine lol. I have everything working, the electric start works, everything.. Except the spark plugs. I'm not 100% sure how to wire the coils, Yes I did ground them, I also grounded everything else that was needed to be grounded. BUT, the spark plugs just don't spark, any help, please!? THANKS SO MUCH.

xorbe · May 12th, 2015, 05:45 PM

Pic of your setup with drawing on it how things are wired currently?

nickk_pike · May 12th, 2015, 06:56 PM

Quote:

Originally Posted by xorbe

Pic of your setup with drawing on it how things are wired currently?

nickk_pike · May 12th, 2015, 06:58 PM

As of rightnow, everything is wired stock. What would be something that would cause it to not spark?

Motofool · May 12th, 2015, 07:44 PM

Quote:

Originally Posted by nickk_pike

As of rightnow, everything is wired stock. What would be something that would cause it to not spark?

Welcome, Nick !!!

Is there electrical continuity between the engine and the negative pole of the battery?

Ghostt · May 12th, 2015, 10:57 PM

Are you using the OEM key? Because there is a 100 ohm resistor in there to prevent "HOT WIRING".

If your not using the OEM set up, then you need to add a 100ohm resistor, please see to wiring diaphragm(pdf) below.

Good luck

nickk_pike · May 13th, 2015, 04:07 AM

thanks for all the amazingly fast replies! Yes I am using the OEM key, and yes I do continuity between the engine/battery. thanks

nickk_pike · May 13th, 2015, 04:09 AM

Well not the oem key, I'm using one that I bought from eBay, a replacement one. Do I still need that resistor? thanks again!

cuong-nutz · May 13th, 2015, 06:52 AM

Quote:

Originally Posted by nickk_pike

Well not the oem key, I'm using one that I bought from eBay, a replacement one. Do I still need that resistor? thanks again!

Yes. I repinned the Chinese eBay ignition switch/lock because how they set it up is not up to standard. Regardless, you need to add a 100 ohm resistor to make it work.

nickk_pike · May 13th, 2015, 08:12 AM

Quote:

Originally Posted by cuong-nutz

Yes. I repinned the Chinese eBay ignition switch/lock because how they set it up is not up to standard. Regardless, you need to add a 100 ohm resistor to make it work.

Just so make sure. I need the resistor to make the spark plugs fire?

EMSRacer07 · May 13th, 2015, 08:20 AM

Quote:

Originally Posted by nickk_pike

Just so make sure. I need the resistor to make the spark plugs fire?

yes. Without the resistor the ignition system wont work. You can get a few at radio shack for a dollar or so.

Ghostt · May 13th, 2015, 08:58 AM

thought so, and be sure to install the new resistor properly.

nickk_pike · May 13th, 2015, 10:34 AM

Quote:

Originally Posted by Ghostt

thought so, and be sure to install the new resistor properly.

Sorry if I'm asking too many questions.. I've wired everything BUT a motorcycle. The electric starter stills turns over without the resistor, is that normal?

Ghostt · May 13th, 2015, 10:45 AM

Quote:

Originally Posted by nickk_pike

Sorry if I'm asking too many questions.. I've wired everything BUT a motorcycle. The electric starter stills turns over without the resistor, is that normal?

Yes

EMSRacer07 · May 13th, 2015, 11:00 AM

what he said ^^^^^^^^^^ the anti theft just keeps the ignition from working. It will turn over etc but wont power the plugs.

Ghostt · May 13th, 2015, 11:55 AM

It part of the ignition circuit, nothing to do with the starter circuit.

nickk_pike · May 13th, 2015, 11:57 AM

Quote:

Originally Posted by Ghostt

It part of the ignition circuit, nothing to do with the starter circuit.

Thank yall so much, I'll check about the resistors when I get home. one more thing, does anyone have any idea on which wires plug into which side of the ignition coils? There is a green side and a black side.. Thanks

nickk_pike · May 13th, 2015, 03:19 PM

Nothing happened with the resistor. I used a 1 watt 100Ohm resister, was it supposed to be a half watt? please reply ASAP. thanks

EMSRacer07 · May 13th, 2015, 03:50 PM

Quote:

Originally Posted by nickk_pike

Nothing happened with the resistor. I used a 1 watt 100Ohm resister, was it supposed to be a half watt? please reply ASAP. thanks

it has to be the right voltage coming out of the ignition switch. I remember I bought a ebay switch i had to run 2 100 ohm resistors together to get the voltage in the "safe area". Try one more.

cuong-nutz · May 13th, 2015, 03:53 PM

Quote:

Originally Posted by nickk_pike

Nothing happened with the resistor. I used a 1 watt 100Ohm resister, was it supposed to be a half watt? please reply ASAP. thanks

How did you wire the resistor? I took mine apart and soldered it in.

EMSRacer07 · May 13th, 2015, 03:55 PM

it can be done after the switch as well doesnt have to be done on the switch. just fyi. But its possible it just didnt drop the voltage enough. Try two.

nickk_pike · May 13th, 2015, 03:57 PM

it goes to the gray wire?

EMSRacer07 · May 13th, 2015, 03:59 PM

Quote:

Originally Posted by nickk_pike

it goes to the gray wire?

colors could vary with the aftermarket ignition switch. I think mine was a different color than on the main wiring harness. But on the harness I beleive it connects to a grey wire like the schematic above.

nickk_pike · May 13th, 2015, 04:02 PM

I have a .5 Watt resistor in there at the moment.. tried a 1 watt.. nothing happend, so (2) 1 watt resistors?

EMSRacer07 · May 13th, 2015, 04:03 PM

I guess we shall assume that you did it right, are the other safety switches right? Like the motor in neutral, kickstand down sensor, and make sure all the fuses are good. Check the fuse for ignition.

Just throwing stuff out there to check. I still would wire in another resistor. Thats what I had to do to get the voltage right.

nickk_pike · May 13th, 2015, 04:07 PM

these are my wiring harness/key ignition wire colors

nickk_pike · May 13th, 2015, 04:09 PM

what wattage of resistor did you use when you wired 2?

nickk_pike · May 13th, 2015, 04:12 PM

and yes, all fuses good, kickstand bypassed, engine is in neutral.

EMSRacer07 · May 13th, 2015, 04:12 PM

Quote:

Originally Posted by nickk_pike

I have a .5 Watt resistor in there at the moment.. tried a 1 watt.. nothing happend, so (2) 1 watt resistors?

yeah throw another one on there. Its a matter of what voltage passes through. I cant remember the voltage but 2 resistors 1 watt each did it for me. Hope someone else can chim in and state what voltage needs it to be

nickk_pike · May 13th, 2015, 04:13 PM

do I wire them parallel? or in series?

EMSRacer07 · May 13th, 2015, 04:18 PM

Quote:

Originally Posted by nickk_pike

do I wire them parallel? or in series?

series. one right after the other. Do you know what voltage and ohm reading your getting after the resistor?

nickk_pike · May 13th, 2015, 04:20 PM

unfortunately I do not have a voltage/Ohm meter rightnow.. left it at work

EMSRacer07 · May 13th, 2015, 04:22 PM

Quote:

Originally Posted by nickk_pike

unfortunately I do not have a voltage/Ohm meter rightnow.. left it at work

sure two will do it. If its not the resistor I would think its something else. hmm..... try two and report back asap.

nickk_pike · May 13th, 2015, 04:23 PM

okay cool, working on it now.

nickk_pike · May 13th, 2015, 04:33 PM

nothing changed, still doesn't work.

nickk_pike · May 13th, 2015, 04:44 PM

do I have to have the radiator and everything else plugged in for it to work? I'm at a total loss.

crazymadbastard · May 13th, 2015, 06:25 PM

Go here to decipher what resistors you have.http://www.digikey.com/~/media/Image...t.jpg?la=en-US

EMSRacer07 · May 13th, 2015, 06:34 PM

brown ones the right ones?

Motofool · May 13th, 2015, 07:17 PM

Quote:

Originally Posted by nickk_pike

.............. one more thing, does anyone have any idea on which wires plug into which side of the ignition coils? There is a green side and a black side.. Thanks

Red goes to both (connected to the lower tag in both coils).

Black goes to coil #1 (left when seating in the bike).

Green goes to coil #2 (right when seating in the bike).

Caveat:
The colors are reversed on the old and new gen's wiring diagrams, being the one for new gens wrong.

You could by-pass the CDI, switch, pick-up coil, etc. and test the coils and plugs by themselves:
http://mgaguru.com/mgtech/ignition/ig104.htm

Similar problem:
https://www.ninjette.org/forums/showthread.php?t=128112

https://www.ninjette.org/forums/showthread.php?t=119399

nickk_pike · May 13th, 2015, 07:27 PM

Quote:

Originally Posted by crazymadbastard

Go here to decipher what resistors you have.http://www.digikey.com/~/media/Image...t.jpg?la=en-US

I will check tomorrow first thing.

May 13th, 2015, 08:58 AM	#12
Ghostt in your machine Name: Scott Location: Summer Shade, Ky. Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot. Blog Entries: 25 MOTM - Jun '17, May '16, Mar '15	thought so, and be sure to install the new resistor properly. __________________________________________________ *violente et ignorantia* ZX-2R BLOG *Twitter and Instagram = Ghostt_Scott* *I'm not here to change your mind, just to inform.*

May 13th, 2015, 11:00 AM	#15
EMSRacer07 ninjette.org sage Name: Byron Location: Reno, NV Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761	what he said ^^^^^^^^^^ the anti theft just keeps the ignition from working. It will turn over etc but wont power the plugs. __________________________________________________ 1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust

May 13th, 2015, 11:55 AM	#16
Ghostt in your machine Name: Scott Location: Summer Shade, Ky. Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot. Blog Entries: 25 MOTM - Jun '17, May '16, Mar '15	It part of the ignition circuit, nothing to do with the starter circuit. __________________________________________________ *violente et ignorantia* ZX-2R BLOG *Twitter and Instagram = Ghostt_Scott* *I'm not here to change your mind, just to inform.*

May 13th, 2015, 03:55 PM	#21
EMSRacer07 ninjette.org sage Name: Byron Location: Reno, NV Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761	it can be done after the switch as well doesnt have to be done on the switch. just fyi. But its possible it just didnt drop the voltage enough. Try two. __________________________________________________ 1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust

May 13th, 2015, 04:03 PM	#25
EMSRacer07 ninjette.org sage Name: Byron Location: Reno, NV Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761	I guess we shall assume that you did it right, are the other safety switches right? Like the motor in neutral, kickstand down sensor, and make sure all the fuses are good. Check the fuse for ignition. Just throwing stuff out there to check. I still would wire in another resistor. Thats what I had to do to get the voltage right. __________________________________________________ 1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust

May 12th, 2015, 05:13 PM	#1
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	Spark Plug not sparking? PLEASE HELP I recently have bought all the parts to put together a 2008 Ninja 250R, (Risky) I am currently 16 years old and plan on mounting this engine in my current 150cc 7HP engine lol. I have everything working, the electric start works, everything.. Except the spark plugs. I'm not 100% sure how to wire the coils, Yes I did ground them, I also grounded everything else that was needed to be grounded. BUT, the spark plugs just don't spark, any help, please!? THANKS SO MUCH.

May 12th, 2015, 05:45 PM	#2
xorbe ninjette.org guru Name: xorbe Location: Bay Area, CA Join Date: Jun 2013 Motorcycle(s): N650 (and others) Posts: 408	Pic of your setup with drawing on it how things are wired currently?

May 12th, 2015, 06:58 PM	#4
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	As of rightnow, everything is wired stock. What would be something that would cause it to not spark?

May 13th, 2015, 04:07 AM	#7
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	thanks for all the amazingly fast replies! Yes I am using the OEM key, and yes I do continuity between the engine/battery. thanks

May 13th, 2015, 04:09 AM	#8
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	Well not the oem key, I'm using one that I bought from eBay, a replacement one. Do I still need that resistor? thanks again!

May 13th, 2015, 03:19 PM	#18
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	Nothing happened with the resistor. I used a 1 watt 100Ohm resister, was it supposed to be a half watt? please reply ASAP. thanks

May 13th, 2015, 03:57 PM	#22
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	it goes to the gray wire?

May 13th, 2015, 04:09 PM	#27
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	what wattage of resistor did you use when you wired 2?

May 13th, 2015, 04:12 PM	#28
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	and yes, all fuses good, kickstand bypassed, engine is in neutral.

May 13th, 2015, 04:13 PM	#30
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	do I wire them parallel? or in series?

May 13th, 2015, 04:20 PM	#32
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	unfortunately I do not have a voltage/Ohm meter rightnow.. left it at work

May 13th, 2015, 04:23 PM	#34
nickk_pike ninjette.org member Name: Nick Location: Houston Join Date: May 2015 Motorcycle(s): Ninja 250 Gokart Posts: 25	okay cool, working on it now.

May 13th, 2015, 06:25 PM	#37
crazymadbastard I'm crazy,your excuse is? Name: Winston Location: Connecticut Join Date: May 2013 Motorcycle(s): 250 2007 ninja Posts: A lot.	Go here to decipher what resistors you have.http://www.digikey.com/~/media/Image...t.jpg?la=en-US __________________________________________________ My Cafe Racer Build My intro post

May 13th, 2015, 06:34 PM	#38
EMSRacer07 ninjette.org sage Name: Byron Location: Reno, NV Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761	brown ones the right ones? __________________________________________________ 1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust

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