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what colour/condition should my old sparkplugs be?....

...I replaced them last week, and I am not sure what condition they should be in, if the engine is running correctly.

I thought a plug, oil and filters change was in order after a hard winter's commuting.Especially as the plugs were the original ones fitted in Japan.

I have stuck with Castrol RS oil, which seems a decent enough oil...I used it b4, six months ago.

JEZ300Z

 

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    a light brown colour, I got mine changed 2 weeks ago. mechanic showed me them and said they were in good order, I was just checking that he had changed all 6 of them,

     

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    Hi,

    Mine were a light brown/tan colour, but otherwise very clean...the back two plugs are difficult to get at...that's why I didn't trust a garage, and did them myself!

    JEZ

     

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