Question about 1972 Honda CB 250

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86 honda trx250r no spark. i cheaked all connection,i replaced cdi box?at first it had delayed spark .i cheaked and cleaned all conections nothing.theni replaced cdi. and the coil wire was broken at the top.icleaned it up to me its working for it worked when it had delayed spark.

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: honda nx650[dominator]

I have the CDI.
Pls contact me if you want to buy.
roy_baker@walla.com

Posted on Apr 09, 2009

  • 3567 Answers

SOURCE: no spark 110cc engine wont start

Check the fuses. Next, check for spark but with a new spark plug. How good is the battery? If needed, add water to the battery cells enough to cover the top of the cell plates.Try a jump start from your car battery. Is the kill switch on? Check the operation of the ignition switch with a volt ohmmeter. You should be getting power into and out of the ignition switch.

If the bike doesn't start and run properly check the side stand kill switch. It kills the engine so that you don’t start out with the side stand down. Broken or out of adjustment, it would kill the spark. Check for a broken wire at the switch or coupler. Get a service manual and check out the electrical section. Some bikes have a diode integrated into the turn signal relay. Try moving the kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it. If that doesn’t work, check out the relay.

Check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center casing.

Please rate this answer. Thanks

Posted on May 28, 2009

  • 125 Answers

SOURCE: 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.

Posted on Jun 15, 2009

  • 3567 Answers

SOURCE: No spark

Check the side stand kill switch if your bike has one. It kills the engine so that you don’t start out with the side stand down. If broken or out of adjustment, it would kill the spark. Check for a broken wire at the side stand switch and coupler. Try moving the kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it. Check the fuses. How good is the battery? Try a jump start from your car battery. Is the handlebar kill switch on? Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Install new spark plug.

If that doesn't do it, check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center casing. If still no spark, get CDI system and coils checked at the dealers shop. You can screw up a CDI unit checking it yourself.

Posted on Jun 18, 2009

  • 1 Answer

SOURCE: 1985 honda VT 500c shadow one cylinder when engine hot

how do i check the cooling fan to see if it is any good

Posted on Aug 03, 2010

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I have a CBR125R it has no spark. I changed the CDI, Stator, Pickup, Tilt Switch, but still nothing, please can you help


Hi, Wynand 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 shorting or 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.
CBR 125 laid down now won start CBR Forum Enthusiast forums for Honda CBR...
How to diagnose no spark situation on motorcycle
Honda CBR 125 Service Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda CBR125RW Owner Manual

Jan 20, 2017 | Honda CBR 125 R Motorcycles

1 Answer

How to fix honda xr200 to spark and how thier wirings connect sorce coil to regulator and cdi to ignition coil


Hi, Elrondjan 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 ignition / electronic module
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.
Honda XR200R 86 02 Service Manual pdf
http://www.partsfish.com/page/oem-parts-for-honda
http://mybikemanuals.com/honda/honda-xr-owners-manuals
Honda XR 200 2002

Jul 19, 2015 | Honda Motorcycles

1 Answer

Why is my 97 Honda 4 wheeler not getting fire


There are three items that are connected together needed to create spark on your 1997 Honda 4-wheeler, regardless of which model it is.
Before we go through a checklist of these three important parts, look for a black wire with a white stripe that runs to the ignition switch and kill button from the CDI box. Disconnect this wire before it gets to the ignition switch and kill button, then check for spark. The most likely cause is a broken kill switch on the handlebar, or shorted ignition switch. Such a condition grounds this wire and kills the spark.
If this test did not restore the spark, continue reading...
Here is what is required to create a spark.

First, the alternator has one coil which generates a high voltage--about 125 Volts AC for the CDI ignitor box.

Second, there is a pulse voltage generated once every revolution of the engine that goes to the CDI box. This pulse causes the CDI to dump its stored energy from the 125 volt line into the primary of the ignition coil.

Third, If the two connections of the wire that runs from the CDI to the Coil are BOTH SHINY clean, the ignition coil will generate a spark.

If any one of these 3 don't happen, the spark will go away. Of these three, item 3 -- one or two tarnished and/or dirty connectors -- is the most likely cause. Just an added resistance of 0.3 Ohms or more in the CDI to Coil connections will cause the ignition to fail. No other wires have to be this clean.

Sep 26, 2014 | Motorcycles

1 Answer

How to bye pass a scooter cdi box?


You can't, unless you want to push your scooter everywhere. The CDI box stores an electric charge that is sent to the coil to create a spark that makes the engine run. No CDI, no spark at the plug.

Generic Chinese CDI's sell for less than $10 and are perfect, if unreliable, copies of Honda CDI's. Just get the same kind of connector as on your CDI.

Aug 29, 2014 | Motorcycles

1 Answer

I have a 1985 honda shadow vt500c, and like many others before me, im in need of a cdi box, or a fix to a broken cdi box, the used ones on line are a bit pricey for my wallet.


Unfortunately, the ONLY thing you can do is replace the cdi box....what REALLY sucks is that those cdi boxes were only used by Honda for 2 years...85 & 86...all the other years/bikes had MUCH cheaper units on them...And DO NOT, I repeat DO NOT waste your time on a USED part that is 30 years old!!! There is NO WAY to test a cdi box!!! Bite the bullet & buy a NEW one if you want to fix it & forget it.....there are new ones available online from a company in the UK for about $259.00 I speak from personal experience with this EXACT issue & once you replace the cdi box, that bike will run (providing everything else is good)

Best of luck!



JJ

Jun 07, 2014 | 1985 Honda VT 500 C Shadow

1 Answer

Cdi box no spark with new box


sounds like yoar stator plate klean yoar ponts that shold do it and chek yoar points

Jan 25, 2014 | Honda Motorcycles

1 Answer

Weak spark. all connections are good. All tests


replace your ignition coil mate, i had a problem like this on my NSR, replaced the coil and i have a full strength spark :)

Jul 25, 2010 | 2001 Honda XR 650 L

1 Answer

No spark


Remove tha gas tank and the seat.
Remove the CDI-box (capacitor discharge ignition box). Black in color, and held to the frame by 10-mm bolts
Replace this CDI box.
Replace the spark-plug.
Re-check for spark again.

Oct 24, 2009 | 1984 Honda VT 500 C Shadow

1 Answer

No spark


I too have a 1087 Honda Shadow and after we rebuilt, cleaned and painted the bike, it would not spark.

Behind the battery, check the CDI box. Look inside and shake upside down, looking for the presence of water. Once we completley dried out the unit. The bike runs like a champ.

the other day I rode in the rain for 160 miles. Engine died. Went to the CDI, water was there. Dried it out and again the bike runs fine. I am going to seal my cdi unit now. and hopefully the problem will not come back.

Richard
Colorado

Mar 30, 2009 | 1987 Honda VT 1100 C Shadow

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