Originally Posted by Girthstick
I just bought 96 FLHT a few months ago, ran fine.
Received a poke
This tells me you are probably super lean. Colder it gets the more dense the air gets, so all that extra oxygen is messing up your a/f ratio...that's why it keeps going when you gun the throttle-you're enriching the mix.
You can squirt some starter fluid in ther to prove it if you want, but I would start by bumping up the size of the low speed jet and go from there.