After removing the stock throttle cable stock tube that runs through the fan shroud, slide the 18inch-long 3/8in. copper tube over the installed buggy throttle cable and run it through the shroud. Place a washer on either side of the shroud and a hose clamp to hold it into place. Next you'll have to bend the tube so it curves up to meet the carburetor throttle linkage. Make sure there are no kinks that the cable could get snagged on before you attach it to the linkage and the carb.