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I need to change the incandescence candles of my two stroke outbord motor, 40hp, about 20years old. I don't know the reference, may be NGK B7HS ?.

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They are called Spark plugs.Look at the letters and numbers on the white part of the 'Spark plug'.The 1st bit are the brand,the second bit is the heat range and length of the thread of the spark plug.If the motor used to run well.Buy the same spark plug.Hope this helps you

Posted on Apr 22, 2010


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