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Old 01-05-2017, 04:13 PM   #1
Mad Mac
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Join Date: Mar 2013
Location: New Zealand
Posts: 412
Default Black plugs

Here are the spark plugs from my stock 29 Model A RPU. As they are very black and carboned-up, it must be running too rich - right? However I always close the GAV fully when driving. When idling, the motor stops "rolling" as soon as I rotate the GAV to the driving position, indicating that it is not running too rich. So what's going on here? Hope you can help.
Mac
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File Type: jpg Plug (2R).jpg (34.0 KB, 24 views)
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