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1999 Sportster 1200 Ignition Failure Options

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  #1  
Old 03-18-2024, 10:33 AM
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Default 1999 Sportster 1200 Ignition Failure Options

Ignition sensor is overheating and failing after about an hour of riding. I ordered a new oem one online and got a call the next day telling me that oem ones are no longer produced but that they sell a kit that does the same thing. Kit arrives and has a mechanical advance unit and a dynatek S in it. I removed my stock sensor and metal cup without issue. Mechanical advance unit does not fit, the bored out hole in the back is too small a diameter to fit over the male portion with the notch on my bike, verified on the manufacturers website that I was given the correct part and I do. It just wobbles from side to side when I try to push it down (yes I made sure the pin was lined up with the notch perfectly). When I try to tighten it down with the bolt it just cants to one side as well.

Should I just buy another mechanical advance unit to see if mine is simply a QC issue from the factory or would it be better to just keep my stock metal cup on and use a dyatek 2000i instead? What are the pros and cons of keeping my cup and using a 2000i vs swapping my cup out for a mechanical advance and using the dynatek S?
 
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Old 03-18-2024, 11:11 AM
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I'd return the one you have and go with the Dynatek 2000i. I have the 2000P and have no issues.

John
 
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  #3  
Old 03-18-2024, 12:01 PM
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I agree with John. I also bought a new timing cup from Hammer perf. I ran a Dyna S with mechanical advance for a few years and the 2000i is much better. I had a lot of pinging with the Dyna S.
 
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Old 03-18-2024, 01:57 PM
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Originally Posted by John Harper
I'd return the one you have and go with the Dynatek 2000i. I have the 2000P and have no issues.

John
Do you happen to know why the coil wires run from the dynatek directly to the coil instead of simply plugging them into the existing deutsch connector at the bottom of the bike?
 
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Old 03-18-2024, 02:34 PM
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No.

John
 
  #6  
Old 03-18-2024, 02:35 PM
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The connector you are refering to is for the voltage regulator if it's the one I am thinking of.
 
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Old 03-18-2024, 02:46 PM
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No the volt reg wired come out somewhere else. The ignition sensor (dynatek) only has two wires, one for the right side of the coil and one for the left side. The dynatek 2000i has something like 5 wires but two of them are also for each side of the coil. I just don't understand why you can't connect them to the existing coil wires and instead you are supposed to connect them directly to the coil. no big deal I was just wondering.
 
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Old 03-18-2024, 03:00 PM
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This is the connector I figured you were referring to, which feed the voltage regulator.




The 2000i is wired as such...



2 white wires on the center pole are power to the coil and to the ignition module. The other two on either side go to the ignition module as well. One is the tach I believe, which I don't have. The last one goes to the voes.
 
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  #9  
Old 03-20-2024, 11:29 AM
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If the only issue you have is the CPS hall effect cam position sensor than you can replace it with a Standard Motor Product MC-SPA3 CPS.. Relatively cheap $55.. Search for it on Amazon or eBay.. I carry a spare for my 98 Fatboy>>
 
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