Does it like it hot or cold?

[BigLenny]

I have a question that I've always wondered about. I'm sure plenty of you that have the mental data to prove this, will settle this question in my mind.

 

Q. What air temperature do these normally aspirated motors in the Ventures and RSTD's that we ride like the most? What I'm asking is, do they run and perform better in warm-hot (summer) temps, or do they run and perform better in cool-cold (fall/winter) temps? Or, is it a matter of air thickness, and barometric pressure?

 

The reason I asked is, sometimes on cool or more comfortable days, my bike acts like it really likes it, and is a little more responsive.

 

Am I imagining things, or is it just that I feel better on those days? Just wondering.

[MikeWa]

Most naturally aspirated engines perform better on cool days. Yes it has to do with air density.

Mike

[Flyinfool]

Yup most engines like cool/cold air.

 

When the air is cold it is more dense, this means that the air molecules are packed closer together. So when the engine sucks in air it can actually get more air in. The more air you can put thru the engine the more power you can get.

That is what turbos and super chargers do, they pack in more air.

[Brake Pad]

This is one of the reasons i ride in the early morning hours or late in the day.

[dacheedah]

rode all winter and the bike liked it fine