I can't wait to go riding at Moab, BUT I need to know if I'll have to re jet for the 2 1/2 days that I'll be riding there. I'd rather not go through the trouble of re jetting if it's not really necessary. I live in Iowa at 817 feet above sea level and Moab is at 4,025. Any expert advice?

 

4,000' shouldn't bother you much. I ride everywhere between below sea level (out by Glamis) and over 10,000' in the Sierras. I don't start to worry until I get over 5,000'.

Threre are tricks like venting you airbox as you rise in altitude, which work well for me.