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Northern New England Norton Owners
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TOPIC: One Plug Black

One Plug Black 18 Jun 2021 11:29 #7

  • dynodave
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Issue discussed at length relating to all possible causes of a plug running cooler than the other. It is a rather LONG list as the NHT is functionally two one cylinder engines tandemed in a single package. Plenty of opportunity to not run thermally identical

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One Plug Black 18 Jun 2021 11:55 #8

  • 1973norton
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That makes good sense considering with what you said on the phone yesterday where one cylinder is actually driving the weaker cylinder.

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