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Motorcycle is not firing on #2and3

Changed pickup coil,and cdi box. Would cut out when cold, when wormed up ran fine. Then had ride home on 2 cylinders. now wont start.

Posted by Anonymous on

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Cdi box bad

Posted on Mar 27, 2015

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Check your coils. My 4 cylinder dropped on to 2 cylinders and it has 2 coils. Coil 1 supplies cylinders 1&4 and the other coil supplies 2&3 (your problem). Look in a manual and find the primary and secondary resistance that the coil should be reading. Primary (the 2 connectors that are wired from the bike - mine were just spade fittings) should be pretty low ohms, around 5 if I remember mine correctly. The secondary is where the HT leads are connected (remove the HT leads if you can) should be high ohms - 20k??. My secondary reading was showing an open circuit so I replaced with a pattern part and now runs like a dream, especially as she is over 25 years old.

Posted on Mar 27, 2015

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1 Answer

I have 1990 suzuki gsx 600f with no spark but does crank i have tried cdi box as i have 2 of the same bikes plugs seem fine checked all the wiring i don't know what it could be


Hi, Anonymous 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.
Testing your motorcycles Ignition Pickups
How to test motorcycle CDI box ignition coil
How to diagnose no spark situation on motorcycle
http://tinymicros.com/mediawiki/images/e/e3/Suzuki_GSX600F_Service_Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gsx-owners-manuals


Oct 06, 2016 | 1990 Suzuki GSX 600 F (Katana)

1 Answer

Ummm my 150 pulsar dtsi have got firing problem till now mechanics doesnot know where is the problem plzzz help me out


Hi, Surat 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.
Pulsar No spark on the right plug Team BHP
http://www.xbhp.com/talkies/help-me/25313-pulsar-180-not-starting.html
How to test motorcycle pickup coils
How to test motorcycle CDI box ignition coil
http://www.bcmtouring.com/imp/Pulsar_DTSi_Workshop_Manual.pdf

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1 Answer

Will cdi box stop stator from firing on a 125cc pit dirt bike


Stator will stop the cdi from firing the spark plug and either cdi or stator if bad will stop a spark from being created. The coil, wiring, kill switch and other things can also stop ignition spark.

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1 Answer

Stalling


The CDI box could be bad or the coil could be breaking down so maybe a new coil would fix you up they only run around 20$ cdi box on the other hand can cost an easy 100$ or better you might also try changing the oil but make sure to buy kinda thick oil cause it's cold out

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1 Answer

I have a yamaha r1 2001 no current to plugs 1 @ 4 tried everything change coils cdi box harness rectifire nothing works


hi,about the only thing you havent replaced is probably the culprit,it sounds like one of the pickups has failed and gone open circuit,this will tell the cdi unit that the pickup has already fired and not send the voltage pulse through to the coils,hope this helps...cheers

May 01, 2010 | 2001 Yamaha YZF-R1

1 Answer

What causes cdi box to fail? the big red ran fine,but when trying to resart it the next day it will not fire. Also how do I know if it is truely the cdi box?


many things can cause a cdi box to fail they are hard to diagnose. but as far as testing goes u can use an multimeter to test ur resistence in the stator and coil if they test good its the cdi. or even a bad ground can cause it to loose fire.

Apr 13, 2010 | Honda XR 250 R Motorcycles

1 Answer

My 1995 yamaha vmax motorcycle starts fine. when it warms up after a bit it shuts down. the shop is puzzled. they said that all 4 coils test out fine but when it is warm they all 4 just stop. no spark goes...


have them test the cdi box. it is your electronic controler for your ingnition timeing. it could be getting hot and shuting down. when it shuts down. the can take a wire from the negative side of the coil and ground it to the frame touching it and letting go of it instintly and if it sparks its not the coils it will be the cdi box or something to do with the electronic pickups in the motor that gives the signal to the cdi. that it is the correct time to trigger firing. hope this helps out.

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3 Answers

No spark from coils


i HAVE A 2006 V STAR 650 CLASSIC WITH A STARTING PROBLEM, COIL PACKS HAVE BEEN CHECKED OK, CDI IGNITION MODULE HAS BEEN REPLACED AND STILL NO FIRE TO PLUGS, KILL SWITCH ON HANDLE BARS BEEN REPLACED TOO, STARTER WILL TURN ENGINE BUT NO FIRE AT ALL

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1 Answer

88 tercel no spark, cranks fine


Unless you have the equiptment to check the microprocessor, I believe that is next.Sorry 

Jan 05, 2009 | 1988 Toyota Tercel 2 Door

1 Answer

Im not getting any spark from one of side of my 2 cyclinder kawasaki ninja 500 EX. Its an 1987. I have replaced the plug wires and the pickup coils. I switched the coil packs and both work. Im just not...


Hi,

To my knowledge, a 1987 Kawasaki EX500 uses a TCBI with digital advance to fire the ignition coils upon receipt of pulse from the trigger/pickup coils.

Since the pickup coils are new, and you have swapped the ignition coild, replace the high tension wires and checked/replace the spark plugs, the the only cmponent left is the CDI (electronic ignition system).

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

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