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Atc200es NO SPARK

Gene Giddings

By Gene Giddings
in ATC 3-Wheeler Forum

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Gene Giddings Newbie

Gene Giddings

Posted
Posted

Hello everyone.    I am in desperate need of help as I am at my wits end with this machine.   I have a friends 1984 ATC200ES Big Red that has no spark.   Here is what has been done so far. 

CDI replaced,  coil replaced, complete pulse generator assembly including the rotor/advance.    New plug.

Stator checks good and has good voltage when spinning

No matter what I do, I can get no voltage from the pulse generator.  I have set the gap anywhere from .010 to .020.  I have tested the ohm reading and it has 36 ohm between the blue wire and the green wire. 

What is the proper way to test the pulse generator with the engine spinning?   I have been told to disconnect it from the harness and it should have approximately .7-.9 volts AC.    I have nothing.   I have also tried a 1.5V incandescant bulb across those 2 wires and the bulb doesn't even flicker.

Does this have to be connected to the harness with the CDI box inplace for it to create any voltage?     It seems to me that it should create its own current when spinning where its a magnet passing a coil.    What am I missing here?

Any help with this will be Greatly appreciated.

Thank You

Gene

Frank Angerano Grand Master

Frank Angerano

Posted
Posted

Wow great bike I had one way back in the day. 

Thats a lot of parts you changed.

So the pick up coil should be connected to the harness and is set to deliver the spark to the bike when it’s timed correctly. The spark comes from the wiring system and delivered to the  ignition coil. The trigger coil is there to deliver that spark at a set time.  The ohms test you did puts that part in a good range so I would say it’s ok. The stator you soad was tested and came back good ? How did you test that ? That’s important. 

And the new cdi you have installed, Is it an oem or cheaper aftermarket? 

Lastly is your wiring system.  It’s possible that the system is grounded somehow killing the ignition system.  

Have you gotten onto the harness where the kill switch wires are and tested that by putting a tester across the two wires with your tester on continouity and see if you have continuity when you move the switch to on and off. Maybe that kill switch is broken.  

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