Quote:
Originally Posted by FrankenDesmo
I had not heard of doing that before - is that just to remove any traces of resistance?
They seem to be the same plugs, heat range aside, except yours have a Projected insulator (whatever that means), and take a 16mm socket instead of 18mm..
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I use the threaded nipple ones because the nipple doesn't fit into my plug caps, I have to remove them and just use the treaded portion bare. If you need the nipple, the fixed ones are a little cheaper.
Don't ask me what a projected insulator is! Probably like overhead mudguards or underslung overdrive? (Chain.)
Regarding your asymmetric mixtures, I wonder if one of the diaphragms is split and not lifting the needle valve/jet properly?