Hopefully this question will bring the spark plug
conversation a bit closer to concrete answers, rather
than religion...

I've seen a few mentions of plug heat ranges.  What
does this effect?  What are the consequences of
running "too hot" or "too cold" of a plug?

Thanks,
-damon

=====
'84 Westy (Sparky) w/2.3L WBX (well... it was worth a shot.  And now it is.)
Vancouver, BC

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