Question about 2006 kawasaki KLX 250

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I have no spark on the spark plug. bought new cdi box i dunno wires all good and contanuety all good

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There are a few things you can do

1 make sure theres a connection between the coil and the plug
2 make sure your coil is working good
3 replace the coil off needed

Posted on Mar 26, 2011


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1 Answer

My 2002 Yamaha Road Star Midnight has no spark

Hi, Jeff orange wires are usually, but not always, power wires and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and CDI box.
5. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose, check for spark leakage in the dark.
6. Faulty ignition coil, pick up coil, trigger coil or CDI box testing needs to be checked with an ohmmeter at 70 degrees Fahrenheit
7. Faulty safety switches clutch, kickstand, neutral, off/on etc.
8. Faulty ignition switch.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Re No spark to the rear cylinder Road Star Forum Yamaha Road Star
How to diagnose no spark situation on motorcycle
Yamaha XV16AL Service Manual
OEM parts for Yamaha
Yamaha ROAD STAR XV16A Owner Manual

Btw, I’m available to help over the phone in case u need at

Nov 30, 2016 | 2002 Yamaha Road Star Midnight

1 Answer

I have a 97 blaster its got no spark but i put a

Could be a half dozen things. How are you testing for "no spark"? Is the pick up coil for the cdi any good? New spark plug? I'd call Rick's Motorsport Electrics or another parts store that knows what they are doing. Where did you get the stuff you bought? Didn't they help?

Sep 27, 2014 | Motorcycles

1 Answer

No spark

Try new spark plugs first, install them and see if it starts..if it won't start, try to fllod it.. them remove the spark plugs and make sure the plugs are wet when you remove them, this proves you are getting gas to the cylinders. No spark...then you will need a factory service manual to check the resistance values according to the manual for the pick-up coil, the cdi box, the main ignition coil, the plug wires. Check the on/off switch on the handlebar if it has one.

Good luck!

Jul 26, 2014 | 2001 kawasaki EL 125 Eliminator

1 Answer

I have no spark on my 1980 kdx 80 bought a new coil but not sure if that's the issue cause I can feel spark with the old coil but I can't see it any help ??

If you can't see the spark, maybe the gap is set too short?!--Typicaly, with a "no spark" issue, you want to make sure that you have a good spark plug & plug wire/boot. If all those are good, then you need to check your coil...a good coil should test AT LEAST 3.2ohms on a multimeter to provide adequate spark to the plug. If the plug, wire/boot, & coil are all good, then it's a safe bet that you need a new cdi/tci box, as that unit is what sends the signal to the coil to create the spark.

Jun 09, 2014 | Motorcycles

1 Answer

No spark to spark plug

plug wire--coil--ignition mod-cdi--batt or magneto may be bad-----time for some test-------procedures online

Jan 01, 2013 | Motorcycles

1 Answer

I have a 1985 honda big red and the first pull u get spark then after that u loose it but wait ten minutes and it will have it again one time only , what should i check ?

Had similar problem with a 125cc scooter I worked on. First crank of the engine showed spark on first compression and wouldn't spark anymore until you would wait 10-15 minutes. Then it would give only one spark again.

Found it to be a faulty CDI box.

You can't test or repair a CDI box, only replace it. Electrical parts that are purchased, cannot be returned so, you need to be sure it's not the pickup coil, pulse coil,secondary coil, plug wire, plug cap and spark plug itself before you purchase a box. By checking the specific resistances with a ohm meter on the previous mentioned components, will help determine if it's the box or not. Hope this helps!

Feb 29, 2012 | Motorcycles

1 Answer

Low spark on one spark plug

Sounds like you need new wires.....but the cdi box could be working only on one cyl. also........I would try new wires first.....

Dec 29, 2009 | Polaris New Genuine Polaris Snowmobile...

2 Answers

1996 zx11 getting sprk to one bank only

Hi and welcome to FixYa,

The voltage on the green wire must be pulsating when cranking/starting the bike, not steady. Confirm by similarly testing the voltage on the black wire on the left ignition coil. If the green still reads a constant voltage, then the CDI is faulty; to be more specific, most likely that the switching tansistor inside the CDI that drives the right ignition coil has shorted.

Good luck and thank you for asking FixYa.

Jul 09, 2009 | 1996 kawasaki GPZ 1100

1 Answer

1987 Honda shadow vt1100c no spark at any plug

The voltage on the coils is present except at the instant of firing. The interruption of the voltage is what causes the coil to fire. The cdi box is what causes the voltage interruption.
The interruption is very hard to detect. You are not the first to be stymied by that box. If you have access to an oscilloscope, I think you can see the pulse if it occurs.

Jun 07, 2009 | 1989 Honda VT 1100 C Shadow

3 Answers

19-95 KLF300 ATV Kawasaki 4x4 no spark put new ignitor unit on.

You said the motor cut out and popped and backfired when it quit, this is almost always one of two things; either the low speed pulse coil or the actual CDI "black" box. You will almost never lose a main coil. One thing I would also check to make sure did not happen is shearing a flywheel mag key. When the motor backfires you can easily shear a mag key if you have a heavy flywheel, (external). However when this happens you don't usually lose spark but it will certainly cause the backfire.
One other item of importance is that the bike you are in question about does not emit a bright spark when you are checking for fire. Make sure you are using a brand new plug and ground it on the head. Try to make sure you are in a dark environment when you check the spark.

Dec 13, 2008 | kawasaki KLX 300 Motorcycles

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