Like I've said before, I've seen plenty of plugs (even new ones) that won't work once fitted and under load. Load isn't just WOT at low RPM, load is also operating load.
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Andy.
NSR-WORLD.COM
Please keep all responses to Forum posts on the Forum so that others may benefit.
Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.
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