Question about 2008 KTM 105 XC

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LOSE OF SPARK

I HAVE AN 07 KTM 85 SX,WHILE RIDING ONE DAY I LOST SPARK.THE CDI,COIL , KILL SWITCH,AND STATOR ARE NOT PHYSICALLY DAMAGED. TRIED A NEW PLUG TIGHTENENED AND RECONECTED EVERYTHING ITS ALL CLEAN W/ DIELECTRIC GREASE.I NEED TO KNOW THE CORRECT WIRES TO CHECK WITH AN OHM METER FOR EACH OF THESES WITH THE TOLERENCES .HENCE RED/WHITE 125-165 OHMS ETCETC.I DONT WANT TO PLAY A GUESSING GAME.

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  • Ken Mangione May 11, 2010

    I can refer you to a KTM dealer located in Jacksonville, florida. Shop name is Atlantic Moto Sports. Ask for Kirt. 904-247-1622

  • Rob Selvy
    Rob Selvy May 11, 2010

    Did your bike just die? or did it give you any misfiring before it quit? The ignitions are pretty sound these days and if you lost the low speed pulse coil you almost always get a erratic performance just before it quits. Have you bypassed the kill switch?I'm not trying to insult you because you sound very intelligent but the kill switch has caused more nightmares than I wish to discuss, on and off the track.

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  • 12 Answers

Pull the plug back out of the cylinder and ground it against one of the head bolts, kick the engine over to see if you are getting a spark.

Posted on Jan 05, 2009

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1 Answer

Have a 2011 50sx ktm no spark getting to plug ,plenty power out of maggy to coil have put new coil and lead ,new plug but still no spark with the kill switch unplugged


Hi, Chris 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 module.
5. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose.
6. Faulty ignition coil or electronic control module or CDI box.
7. Faulty CKP, CMP, or BAS sensor.
8. Faulty ignition switch.
9. Tilt sensor needs a reset.
10. Security alarm failing to disarm needs reset
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.
KTM 50 No Spark Mini Pe Wee
Dirt Rider Magazine
Motorcycle Message Board Motorcycle USA
http://www.ktm.com/globalassets/product-manuals-pim-data/dok_bike_bed_11_3211593_en_om__sen__aepi__v1.pdf
https://www.tradebit.com/filedetail.php/275115445-2009-ktm-motorcycle-50-sx50-sx-junior50

Jun 23, 2016 | KTM Motorcycles

1 Answer

I've got a KTM 125sx 2002 I've done a top end rebuild piston etc and put a new coil and plug on it and the bike won't start with the kicker, only with a bump start took the plug out and its got a weak


Hi, Ian and the usual suspects are:
1. Fouled spark plugs.
2. Discharged battery, 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.
3. Loose connection at ignition coil or plug between ignition sensor and module.
4. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose.
5. Faulty ignition coil or ignition / electronic module
6. Failed CKP, CMP, or BAS sensor.
7. Faulty ignition switch.
8. Security alarm failing to disarm needs reset
For more information about your issue and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.
125sx won kick start please help me KTM 2 Stroke
ktm 85 sx no spark
1999 2003 KTM 125 200 SX MXC EXC Service Manual Moto Data Project

Feb 23, 2016 | KTM Motorcycles

1 Answer

HOW TO CHECK NO SPARK AT PLUG


kill switch short - unplug it!
that is all that is left on the system, if it does not resolve the issue there is a bad wire in the harness

Jul 10, 2014 | 2000 KTM SX 125

1 Answer

2001 ktm 300 mxc not getting a spark what would cause not to get a spark


A few things,start simple disconnect the kill switch,remove the spark plug cap from the wire,check all your coneections from the stator to the cdi box to the coil.Still no spark your going to need a multi meter to check the stator and coil.If all this checks out to be good then it is your cdi box.A word of caution test these parts before replacing as they are not returnable and could get costly.A good shop could diagnose your problem in hour time.It may be money well spent if you do not understand your bikes ignition system.

May 29, 2014 | 2001 KTM MXC 300

1 Answer

My 2003 sx125 just stopped running, I have fuel. pulled the plug and I do not see any spark??


Replace the spark plug first. Cheapest/easiest thing to try and most popular failure on a two-stroke. If you still don't have spark from the coil wire, then you have to troubleshoot the coil and stator. Also make sure that your kill switch is not shorted or grounded out either at the switch or along the wires.

Oct 25, 2013 | 2003 KTM SX 125

1 Answer

No spark


system not grounded

Jul 24, 2010 | 2005 KTM SX 525 Racing

1 Answer

I have no spark 2000 KTM 125 sx


Before going to the CDI system go ahead and check the kill switches including the side stand switch, with an Ohmmeter. How good is the battery? Check the fuses. Check the wiring harness. Are all wires clean and with a solid connection? Any abraded wires? Check the operation of the ignition switch with a volt ohmmeter. Is the bike in neutral and the neutral light is lit up?

You can download a free PDF factory service manual by going to the website below >
http://www.carlsalter.com/motorcycle-manuals.asp
The manual should tell you in detail how to test the CDI and other electrics.

Please rate this solution. Thanks. > 4 diamonds would be nice!

Apr 08, 2009 | 2000 KTM SX 125

2 Answers

07 KTM 85 SX LOSE OF SPARK


Did you do a compression check just for the sake of saying the motor did not seize? Have you checked by grounding the spark plug to make sure there is not spark? Your problem really sounds like a seizure. You may have lost the CDI box.

Dec 04, 2008 | 2008 KTM 105 XC

1 Answer

2005 ktm 450 sx die while riding.


yes, you are correct, those are the two pieces that could solve your problem, but i would go first for your cdi, you may choose to have it tested first also, before you jump out to buy a new one.

Nov 24, 2008 | 2005 KTM SX 450 racing

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