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Reload this Page CC 125 (K301) won't start - brilliant minds wanted
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  #11  
Old 06-01-2010, 05:26 PM
labrati labrati is offline
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Originally Posted by jdubyk View Post
The saga continues. Honestly, I've tried everyone's suggestions but they've all been fruitless because I no longer have spark. So, what am I overlooking this time that will help me get my spark back.

Again, here's the new parts list:
coil
plug
plug wire
condenser
points
wires to points and coil

when cranking the engine there is no spark at all, but when I turn the key "off" I finally get one little spark.

I've tried: 2 different sets of points, 2 different condensers, a known good plug, different plug wire, 3 different coils.

I have NO idea what else to do. The last time this had spark was the day before my first post, what subsequently happened was I left the ignition in the "on" position overnight (with a battery charger on it) which overheated the coil, causing it to explode. I've obviously since replaced the coil, but what else might have gone bad that I'm overlooking.

After I get spark back, I'll still be back at square one, with an engine that won't run, but at least it'd be nice to have spark again.

Thanks again,
Jon
Check your points, might be fried...
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  #12  
Old 06-01-2010, 07:29 PM
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Amigatec Amigatec is offline
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I would say the switch is bad, try jumping the coil from the battery and see if that helps.
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  #13  
Old 06-01-2010, 07:32 PM
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Matt G. Matt G. is offline
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Yeah, that sounds like a bad ignition switch. Take if off and verify that it works correctly.
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  #14  
Old 06-02-2010, 12:44 PM
jdubyk jdubyk is offline
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The switch seems to be fine, I think. 12V at + side of coil when in the "on" position and 0V when "off". I did try to jumper from the + battery terminal directly to the + of the coil, but it didn't help.

Points appear to be fine as well. I tried putting the old ones back on to be sure, but it didn't help.

Other thoughts?

-Jon
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  #15  
Old 06-02-2010, 01:23 PM
jeepinmike jeepinmike is offline
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are you sure that the points are creating a path to ground?
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  #16  
Old 06-02-2010, 01:46 PM
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CMA's129 CMA's129 is offline
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I had the same trouble with my 129. The crimp on conector that hooks the wire to the points was corroded where it crimps on to the copper wire. I could put a screwdriver on the screw on the points and ground it to the frame and still nothing would happen, Then I stuck the screwdriver on the copper wire below the crimp and bam it sparked. took the points back out again and changed the conector and she fired right up one touch of the key.
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  #17  
Old 06-02-2010, 07:36 PM
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eastonct124 eastonct124 is offline
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I hate to be the bearer of bad news, but...
I preach "Check, and double check!.... then check it again!!!"
If I were you....I would take the points back out, file lightly, look em over, then put back in. Set them according to IH directions....check the timing.
Then recheck it all again. You mentioned 15 deg btdc......it needs 20....no less.
99.99999% of the time it's timing/ points gap.
And I would check all the electrical connections .
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  #18  
Old 06-03-2010, 08:48 AM
Aroostook Aroostook is offline
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Boy, that "have a spark when turning switch off" sounds familiar! I think a switch can read OK in the ON and OFF position, but screw up in the START position. Frustrating as Hell, ain't it? Trouble is, it usually ends up being something so simple that we overlook it. Hang in there - when they're good they're very, very good but when they're bad they're HORRID!
Since it's a 125, I'll tell you a little story. I brought one home several years ago, got it running, let Jeanne drive it and now it's HER's! Named GRACIE after her best friend's grandaughter, she'll be here after any or all of "mine" are gone! Good luck!
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  #19  
Old 06-03-2010, 09:12 AM
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Matt G. Matt G. is offline
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jdubyk-

Aroostook is probably right. That's the most common failure mode of the switch, or at least it is in my experience. Replace the switch.

Eastonct124-

He says he's already changed all of those things several times. If the timing was off, he would still have spark. It would probably even start with the timing only 5 degrees off.
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  #20  
Old 06-03-2010, 09:30 AM
murphycc
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Originally Posted by jdubyk View Post
The switch seems to be fine, I think. 12V at + side of coil when in the "on" position and 0V when "off". I did try to jumper from the + battery terminal directly to the + of the coil, but it didn't help.

Points appear to be fine as well. I tried putting the old ones back on to be sure, but it didn't help.

Other thoughts?

-Jon

The others are trying to tell you something and I agree....the switch.

Bypass the switch and see.

Scott
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