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Wireing harness for ducar 125 pit bike trying to figer out power from magnato to cdi box to kill switch to coil would like a digram

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 202 Answers

SOURCE: wiring on kx 125 ignition coil, can't remember which one goes

Connect the the + to the kill switch, and - to the CDI module.

Posted on Apr 03, 2009

redbeard00
  • 957 Answers

SOURCE: TTR 90 wont start. Not carb. Not CDI. Plug cap?

Every component plays a part in the ignition system. Check the wiring as you go. Start at one end and move forward. You have done a lot of work so far. so you should be close. If the igniter is fine and the other components too. Then it would narrow it down to an electrical problem or no signal/pulse to the coil. See if the coil is receiving that pulse. you can use a test light for this test. Pos. will be power and NEG. will be the pulse. With light on the NEG. crank the engine over and see if it flashes. Let me know how its going.

Posted on Jun 01, 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

DoubleClutch
  • 376 Answers

SOURCE: will a two cdi box system work on a wire harness

No it will not work.

Posted on Oct 01, 2009

Testimonial: "Quick answer. Wish i knew why they won't work though, same year bikes and make other than mine is a vt500c the other is a vt500 both 1985."

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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.

Oct 14, 2015 | Pit 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

Why does my engine cut off?


Possible reasons are;
  1. Water condensation in the gas tank has partially filled the carb float bowl. Bikes don't run well on water. Remove the drain plug on the float bowl to drain the bowl.
  2. Install a new spark plug to eliminate possible carbon shorting.
  3. Check the side-stand kill switch. Broken or out of adjustment it can intermittently kill the engine.
  4. A loose or dirty plug in connection on the power wire to the coil.
  5. Bad kill switch on the handlebars.
  6. An abraded kill switch wire or power wire.
Start at the top and work your way through the list. If that doesn't work you will need to go to the dealer and have them check the coil, CDI and other ignition components.

Jan 15, 2010 | 2006 Yamaha Ybr 125

1 Answer

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.

Jun 18, 2009 | Honda XR 200 Motorcycles

1 Answer

Wont start


Check the fuses first. Next, check for spark but with a new spark plug. Is the kill switch on? Does the side stand have a kill switch? Is it working properly? Tip-over kill switch on your bike? Check the operation of the ignition switch and all kill switches with a volt ohmmeter.
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.

Apr 14, 2009 | 2006 Motorhispania Arena 125 Pro Racing...

1 Answer

I have not a spark at the plug, i have tried a different plug,any ideas please?


Check the kill switches including the side stand switch, with an Ohmmeter. 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?

If still no spark, get CDI system and coils checked at the dealers shop.

Please rate this answer. Thanks!

Apr 08, 2009 | 1991 Cagiva Supercity 125

1 Answer

Engine not sparking from plug changed battery ,spark plugs ,new coil and lead thanks in advance regards danny


Check the kill switches including the side stand switch, with an Ohmmeter. 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?

If still no spark, get CDI system and coils checked at the dealers shop.

Please rate this answer. Thanks!

Apr 08, 2009 | 2001 Kymco Stryker 125

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

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