Re: Small Engines cold air and Performace.
When I worked in the small engine shop here locally. Well we are a long ways from sea level here. 6000 to mebbe 8000 if your in the mountains. I am at the foot hills.
I was instructed to put a hotter plug than factory in pretty much everything we touched. Especially chain saws and weed whackers...
I was told it was for our altitude.
Still gotta have a since of humor.