tag:blogger.com,1999:blog-3805220877395944217.post2297801094689146789..comments2022-05-18T00:22:33.407-04:00Comments on A New Motorcycle for (BEYOND) Sturgis: Rise and FallJoeRockethttp://www.blogger.com/profile/04520210350509646710noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3805220877395944217.post-65050980393848953212008-12-10T19:05:00.000-05:002008-12-10T19:05:00.000-05:00Mr. Joe: The reason the bike runs better in cool d...Mr. Joe: The reason the bike runs better in cool dense air are many. But the short version is because this type of air has more oxygen in it for any given volume. This is also one of the short comings of engines with carburetors. If it gets too cold you have to up the size of the jets in it to maintain the proper mixture. This is also why when it’s hot out the bike feels sluggish, it is too rich, or getting too much fuel from the lack of oxygen in the hot air. <BR/><BR/>For the most part adjusting the carb is not really needed. But if you do ride a lot when it gets below 50f it can never hurt to up the idle, or low speed jet, in the carb one size. This helps the engine start easier and run better when cold. Fuel injection systems don’t have this short coming because of the ability to sense air temps among other things and make adjustments accordingly.<BR/><BR/>That’s in a nut shell. More oxygen plus more fuel equals more power. Make sense? <BR/><BR/>fasthairfasthairhttps://www.blogger.com/profile/16578895011107651084noreply@blogger.com