I'm from Minnesota and am going riding on vacation around the Big Horn's and Teton mtn near Jackson WY. I have a 2001 500 HO. Do you think the jetting needs to be adjusted for the higher elevation or should I be ok?

 

3,000 feet is the limit I'd go without re-jetting. It's over 6,000 feet elevation where you're going, so you need to re-jet.

 

Both my machines quit at the exact elevation that the factory says. 6,000 ft.
Can go another 1,000 ft by taking the airbox lid off. Needs to go back on at 6000;

 

I checked a couple places that said 6,000 was the limit without re-jetting, but Jackson is over 6,000 feet before you even start up the mountain trails.

I checked into re-jetting back in the late 90s for the Annual ATV Jamboree in Utah. I thought it was 3-4,000 feet for re-jetting, and 5-6,000 for clutch adjustments, but I was way off. The information I was trying to remember for my old quad might not apply to the new ones, but most likely I was just plain wrong. I'm glad there's someone to correct me when I goof up like that.

 

Thats why we're ALL goof proof. Everybody contributes.