How do you fix the pull start on a baja doodlebug racer?

To fix the pull start on a Baja Doodlebug racer, first ensure the engine is cool and remove the cover to access the pull start mechanism. Check for any frayed or broken cords; if damaged, replace the pull cord by winding new cord onto the reel. Ensure the spring mechanism is functioning properly and reassemble the cover, ensuring all bolts are tight. Test the pull start to ensure it operates smoothly before riding.