NGK TR55 plugs
#4
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If you have a strong ignition, they don't lose power within a year. After a year, i'd replace them. Whether that is required or not, I don't know, but that'* what I would do.
-justin
-justin
#7
If they are the IX Iridium type, they will last for about 100,000 kms.
It'* not difficult to remove them and check them every year just to analyse condition and gap.
I checked mine after a year and they are perfect.
It'* not difficult to remove them and check them every year just to analyse condition and gap.
I checked mine after a year and they are perfect.
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