Question about 2008 KTM 105 XC

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07 KTM 85 SX LOSE OF SPARK

HI ,YOU RESPONDED TO MY QUESTION ,THANKS YES I DID BY PASS THE KILL SWITCH AND ALSO CHECKED IT CIRCUIT IS FINE.THE BIKE WAS RUNNING FINE MY KID WAS RIDING THE BIKE IN A HARE SCRAMBLE WHEN THIS HAPPENED HE SAID IT SOUNDED LIKE HE SEIZED THE RINGS YOU KNOW THE BURRRRRR SOUND. BUT THE TOP BOTTOM AND SEALS ARE FINE.

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Hi my sons bike has no spark can anybody help! tried disconnecting the kill switch changed both blocks could it be the magnet on the fly wheel?

Posted on May 26, 2010

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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.

Posted on Dec 08, 2008

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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 can you tell what year KTM 85 was made


Yes the vin number can identify the bike year make and model. Prior to 1980 sometimes will NOT give engine size.

Feb 13, 2014 | 2008 KTM SX 85

1 Answer

Can a cracked 2008 ktm 85 sx be welded?


Yes it can be done, but Ally welding is not something for a novice. Find a local engineering company with a good reputation and they should be able to help.

Nov 08, 2012 | KTM Motorcycles

2 Answers

2003 KTM 250 SX won't start. When you kick it, it starts to fire but never turns over. I accidently put the wrong gas in it. It takes 60:1 but I didn't put enough oil in it. It died while I was riding it....


hi
If you have run the engine with too little oil then there is probably damage to the piston / rings & / or bore
Remove the exhaust to have a look

Ride Safe
Bike-Doc

Jun 03, 2010 | 2003 KTM SX 250

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

1 Answer

LOSE OF SPARK


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.

Nov 12, 2008 | 2008 KTM 105 XC

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