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Canadian Daves JustKDX
Just got my first KDX
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[QUOTE="reepicheep, post: 1384925, member: 104942"] It might be interesting to do some math, and use tune the mix ratio to temperature to keep the jetting lined up... Hmmm... 32:1 is 3.125% oil in the gas. 50:1 is 2.000% oil in the gas. So you could use the ratio between the two and compensate for density of air changes up to 1.12%. Cooler air is denser and needs more fuel, so run 50:1 on cool riding days, then 32:1 on hot riding days. I googled up this air density chart: [url]http://www.engineeringtoolbox.com/air-temperature-pressure-density-d_771.html[/url] At 30 degrees F, air is .081 pounds per cubic feet. At 100 degrees, it is .071 pounds per cubic feet. So between cold winter and hot summer, you have a 1.14% difference in density. So it's within reason. Run 50:1 in the winter, run 32:1 in the summer, and leave the jets be. That also gives you the "when in doubt, lubricate more" setting for the really hot summer days when you have more of a chance of overwhelming the cooling system. Of course, all this assumes that oil doesn't burn, which I am sure is a wrong assumption. And kind of a hassle to keep track of what you are mixing. And one more variable to try and track for keeping the jetting straight, which is the last thing we need. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Just got my first KDX
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