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View Full Version : High Altitude Jetting?????



rescue6
02-23-2007, 12:06 PM
I just picked up a new leftover 2005 400EX and live and ride at between 6000-10000 feet in elavation and from around 40 Deg to 80Deg temperatures. I was wondering if anyone had a suggestion for jetting. I have an HMF slip on a K&N Filter and the lid removed and was just wondering if I would still need to bump the pilot to a 42 and what main to get. It is always harder at elevation.