The carburetor on a KLR is one of the last things you will need to worry about. No jet changing should be required. I live at sea level and ride up to 13,000 feet (4,000 meters) with no changes. As mentioned the carburetor on the KLR self adjusts for altitude.
I take 10 to 20 thousand mile (16,000 to 32,00km) trips and never take carburetor parts. I have 100,000 miles (160,000km) on one KLR and only had to open the carburetor one time to clean the jets because I let it sit three months with gas in the carburetor. All that was needed was a Phillips and a flat screwdriver. The rubber gasket can be reused.
For suggestions on other items to take, let us know the round trip distance and the year model and mileage on you KLR.
Last edited by GoMotor; 02-02-2016 at 02:03 PM.