Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: commando1954 on April 29, 2023, 09:27:17 AM
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What spark plugs are best for my cb550k 1976?
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D7EA or D8EA
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Seems to be a trend for fitting Nippon Denso recently. Seems there are quite a few fake NGK plugs flying around.
X22 ES is standard but X24 ES also seems to be used a lot.