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Canadian Daves JustKDX
anyone running a similar set up @ 4000 ft. (2003 KDX 220 R)
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[QUOTE="Woodsquest, post: 936714, member: 57669"] The main reason behind that recommendation from Ron I would guess is because at the lower elevation the air temperature is warmer than at the higher elevation. So, 75 degree air temp at, say, 1500 feet of elevation will have about the same amout of oxygen as, say, 60 degree air at about 4,000 feet elevation. Not much need to rejet. As air warms, the molacules move quicker and the air thins out. As you go higher in elevation, the air thins out as well. Start a ride on a cold mountain in the morning and the jetting may seem great. Same day but now hotter as the sun warms the air and soon you are running a tad rich. Make sense? I only responded because you said you were new to jetting. I thought I might be able to help you understand part of what's happening. Keep in mind: making jetting changes over several days while trying to dial in the correct set-up is better than spending a whole day at it if the air temperature or the elevation is changing during the jetting sesson. I usually do one change at a time with conditions as close as I can duplicate each time. This usually means I'm making a change at the staging area I ride just before taking off in the morning. I warm up the bike, make sure it is performing as it did the last time I rode, make my adjustment, then ride that combination all day long. It's slow, but it is less frustrating than trying to get it all done at once. Trust me. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
anyone running a similar set up @ 4000 ft. (2003 KDX 220 R)
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