replacing the spark plug in the motor block engine cylinder. maintenance of the ignition system. close-up

replacing sparkplug spark plug ignition system twowheel tractor motor cultivator walkbehind industry agriculture farming summer autumn petrol engine runningin cutter milling power cultivation depth transmission hitch attachments start pto reducer reduction gear model sun green orange downshift breakingin soil ground unit assembly multifunctional control job working plow adjustment walking maintenance breaking cylinder block cylinder system close-up