Spark plug replacement

What are the spark plugs that people have tried in these 2 stroke chinese engines. I have tried the champion cj7y, and didn't like it.

I think that I am running that plug or the motorcraft version it works fine for me but im not very discerning

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I'm still running the stock plug. But I think a lot people here are running NGK..................

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NGK B5HS works great and they are inexpensive or maybe you could try the next range cooler B6HS, but supposedly the Chinese stock plug is equivalent to the hotter B4HS...which I don't agree with....but the stock plug is slightly different than the NGK in construction and electrode tip length.

As a side note: my reckoning says a NGK BR6HIX Iridium plug would fit...not sure how it would perform.

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i replaced my plug and not much difference at all. the spark plug wire i changed and it made a huge difference

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Plug/wire/cap fo' sho'.

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Thanks for the help I tried the Dimon fire. That is comp "forget the number" to the Champion cj7y, and I do not like the short threads. Could get carbon build up on bottom portion of spark plug threads

I am now going with a Champian L86c and I love the new sound I seem to be getting.
The plug is a bit too long and I may end up with probs. when I go to remove it but it did change the sound and feel of the bike, almost as if it is running a little richer now, from the sound of things. I have also used the "40501" which is what I seem to remember being an NGK but looking at it now, there is no "ngk" marking.

NGK B5HS (preferred)
Champion L86C
Autolite 4093 or 425

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If it ain't broke, and you mess with it long enough, it will be.

NGK B6HS Burns clean and lasts.....