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400exrules
10-31-2005, 09:50 PM
Does cold weather lean out or richen your mixture?

because it ran good at warm temps around 80 degrees or so, but now when its around 40-50 it runs like crap, and studders and popps.
10-31-2005, 10:06 PM
cold air increases density so it richens your mixture
prepracing
10-31-2005, 10:36 PM
Originally posted by MixMasterMike
cold air increases density so it richens your mixture


should be the other way around... cold weather your quad/bike will run leaner. Summer time I can run a 155 main, but in 30-40 degree winter weather it won't even think about running with that jet, I have to bump all the way to a 165 main for it to run right. Yes it will studder and pop due to lean conditions
MAaudioX10
10-31-2005, 11:03 PM
In cold weather the air is more dense, as stated above....thus there is more of it....so what happens when you have more air??

You need more fuel. You are running lean...;)
hondarider2006
10-31-2005, 11:16 PM
cold weather leans it out.
10-31-2005, 11:24 PM
where were you guys before I made myself look like an *** again, i meant to say you need to richen your mixture, doh :mad:
4punksdad
11-01-2005, 07:29 AM
cold air is thinner therefore the mixture will be leaner. Warm air is thick and you will be rich.
400EXBill
11-01-2005, 08:23 AM
Originally posted by 4punksdad
cold air is thinner therefore the mixture will be leaner. Warm air is thick and you will be rich.
Ummm....no...otherwise warm air wouldn't rise.
400exrules
11-01-2005, 02:47 PM
Originally posted by 4punksdad
cold air is thinner therefore the mixture will be leaner. Warm air is thick and you will be rich.

i think you got it backwards cuz when air is warm, the particles are moving quickly and are spread out, but when its cold their moving slow and closer together (more dense) So im guessing that sense the air is cold and thicker, that you draw in a larger amount in cold weather sense its compacted together, which makes you lean

i kinda answered my own question lol

thx guys
hondardr4life
11-01-2005, 02:52 PM
Hmm, that explains my quad. It must have been a little rich in the summer, because with this cold weather it is freakin ripping. It has been running sooo much better in the cold.
watts16
11-01-2005, 02:55 PM
ya it leans it i need to richen mine up