Thread: Spark plugs
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Unread 09-30-2015, 09:09 AM
Nige1100s Nige1100s is offline
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Join Date: Mar 2010
Location: England
Posts: 43
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The UK C95 uses ngk D8HA.

NGK used a strange lettering system for the plug sizes

A is 18mm
B 14mm
C 10mm
D 12mm

Not sure how the worked that out.

The D8HA always come out a nice old fashioned mid brown colour. In a way that plugs don't on modern engines.
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