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  #21  
Old 03-17-2026, 07:31 AM
crazycubtrio crazycubtrio is offline
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Another test to do with your test light is put the alligator clip on battery positive and the probe on the - side of the coil. Crank the engine while watching the light. If it doesn’t flash on and off when the points open and close then the contacts on the points aren’t making up. Depending on what they were cleaned with could cause this because just a tiny bit of sandpaper dust can cause them not to make contact.
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  #22  
Old 03-17-2026, 08:09 AM
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ol'George ol'George is offline
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Just a thought, check to see it the wire from the coil-to- points is not grounded where it attaches to the points, it happens!
And, sometimes it grounds to the point cover because the gromet is missing where the wire enters the points cover.
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  #23  
Old 03-24-2026, 08:43 AM
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jbeerens jbeerens is offline
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UPDATE:
I managed to get the engine to run, and run well last night. Turns out, it [I]was[I] the points. I used Matt Gonitzke's method of static timing and it turn's out the points weren't closing quite enough to contact and charge up the coil, and that's why I didn't have spark. That's the last time I'll be fiddling around with timing. I'll stick to gapping the points at .020 like I did last night; way harder to mess up.
I ran the 149 with the points cover off in case I'd have to make any adjustments, and I was getting a nice, hot spark from them, even with the condenser wired in. The coil is definitely doing it's job this time around!
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  #24  
Old 03-24-2026, 09:41 AM
Ambush Ambush is offline
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Nice you finally found the culprit and it was a cheap fix.

But timing is still a better method than just gapping the points. Gapping gets you close and gets you by, but timing gets you there.

But I guess either method requires some effort at accuracy.
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  #25  
Old 03-24-2026, 09:49 AM
finsruskw finsruskw is offline
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At last!!
Much easier to have dine this when the engine is out of the tractor and on the bench/stand.
Get it dead nuts right away and be done with it.
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  #26  
Old 03-24-2026, 12:32 PM
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jbeerens jbeerens is offline
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One thing I'll try is to vary the gap by .001 at a time and see if that helps at all. It is running very well at the moment, though.
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electrical problem, engine, no spark, won't start


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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

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