...the carburetor? i have a 2-stroke, ktm 200xc and the header is dented and ready to break so i bought a new one , its stock, do i have to jet the carburetor?
If your just going to buy a new standard pipe to replace the original then no you will not need to re-jet the carb.
If you get an after market upgrade pipe then you may need to go up one size on the main jet .
