Thread: Wow, it's cold!
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Old 11-23-2008, 08:28 PM
brucemg51 brucemg51 is offline
Motorized Bicycle Elite Member
Join Date: Jul 2008
Posts: 157
Default Re: Wow, it's cold!

Originally Posted by nikis View Post
my bike is hard to start in cold weather why
Colder air is more dense. Denser air has more oxygen. The same volume of cold air is feeding more oxygen to the engine than warmer air. Modern carburetors have mechanisms for automatically compensating for changes in air density. Needless to say, our motorized bicycle carbs are not exactly on the cutting edge of modern technology.
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