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The colour of plugs when you take them out.

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The colour of plugs when you take them out.
John Mason Offline
Lifetime lover of car tinkering
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Joined: Dec 2017 Posts: 1,160 Threads: 68
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Location: Nottinghamshire. Robin Hood County
Car type: Austin Ruby Mk1 1935
#4
06-07-2018, 06:39 PM
Thank you both for your replies. This leads me to think that I maybe running on a to rich a mixture However adjustment of the mixture screw (the one on the top of the carb) only leads to uneven poor running which ever way you turn it. Adjusting to a position mid way between these two extreams of poor running does give smooth running without flat spots. Can anyone give any advice as to why it maybe running rich given the black sooty plugs. I should have said earlier my car is a 1935 Ruby with Zenith side draught carb.

John Mason
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RE: The colour of plugs when you take them out. - by John Mason - 06-07-2018, 06:39 PM

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