82 1000 LTD Upper RPM Breakup

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29 Aug 2020 19:45 #833958 by F64
Replied by F64 on topic 82 1000 LTD Upper RPM Breakup
You mentioned you don't remember your old one doing that. What is your old one?

81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY

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30 Aug 2020 13:43 #834017 by OkieZ1000
Replied by OkieZ1000 on topic 82 1000 LTD Upper RPM Breakup
I bought an 81 just like this one waaaay back in 1983

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30 Aug 2020 15:57 #834024 by OkieZ1000
Replied by OkieZ1000 on topic 82 1000 LTD Upper RPM Breakup
I swapped the coils to see if the carbon would follow the coils, and now #3 which was the cleanest plug, now carbon'd up pretty quickly.

Maybe these "new coils/wires" the previous owner had put on could be an issue?
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02 Sep 2020 18:55 #834260 by OkieZ1000
Replied by OkieZ1000 on topic 82 1000 LTD Upper RPM Breakup
Does anyone recognize these coils? I can't find any part number on them, only this logo.

They are supposed to be new, but I have searched the internet and can't find them to ensure they are the correct ones for this bike.
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14 Mar 2021 20:19 #844934 by OkieZ1000
Replied by OkieZ1000 on topic 82 1000 LTD Upper RPM Breakup
I wanted to wrap this thread in case someone may run across it some day.

It turns out the PO at some point had the carbs serviced and the pilot jet plugs were not reinstalled. It's amazing when you get all the parts that are supposed to be inside the carbs actually inside them, how well it runs.
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The following user(s) said Thank You: TexasKZ

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