. You have possibly bought a counterfeit ngk plug , those are plentiful in our markets ( comming from china in shiploads , a container of which were intercepted in chennai port few years back ) . It is unlikely that a faulty plug left the ngk factory . G-powers are great plugs for a great price and I have comparatively tested it (several samples) with the standard ngk as well as other brands . It's main benefit is that it hardly needs any cleaning or regapping ever through it's lifetime .Fake & Genuine NGK Spark plug
However the good thing is your problem is solved by switching back to the stock plug , which is the standard ngk one I suppose . The standard ngk plug is plenty fine for all our purposes .



But before that I need to know all the pros and cons of the thing I am going to try on my bike cuz it isnt just a matter of 1 or 2k here.. so need to think a little before investing around 15 to 20k for engine upgradation 
has the seller used the terms "Bullet proof reliability" and "better than stock performance" etc.?? Then please do check out my thread mate. It should clear all your doubts and also the need to hot rod the stock ZMA from a particular seller. Anyways, please do check out the thread and see it for yourself.

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