Engine tuning in colder temps

[smoothie7]

As we near the end of October, I was wandering what people do to run their trucks in the colder temps and possibly snow? Do you still tune by temperature? Any tips would be greatly appreciated. Thanks.

 

[looker2756]

Mine stay nearly exactly the same, even running in snow.
Might go just a Very slight bit richer to help keep from leaning because of the temps., but should stay Very close to the standard settings.

 

[atom3624]

Strange as it might sound, making it richer is correct.
Colder air means the air density is higher, thus more oxygen / unit volume of air. But it is slight.
If you're on the 'lean end of just right', then colder air might throw you a bit too lean.
It's generally so slight in largescale 2-strokes that it doesn't make THAT much difference unless you're really after that last bit - racing for example.
Al.