Should the Choke be Open or Closed on Riding Lawn Mowers?
Any machine that has an engine needs to work with the throttle in a full open position. Cold starts will require the use of full throttle and full choke to get the engine going. Once you are confident that the engine is running smoothly, turn off the choke and back the throttle down to half. This will allow any oil to flow freely and the engine to warm up. Once the engine has warmed up and is running smoothly without cutting out, then you can close the choke and start to mow.
You should never run the choke for than a minute and if you find that you need to, and then you should have the engine looked at or book a professional diagnosis at a reputable repair shop. If you find that the engine sputters and dies after closing the choke then you will need to check or clean the carburettor.
The carburettor needs to be taken apart and cleaned regularly because of dust and sand sticking to any of the lubricated parts of the engine. This sandy build up can cause friction and sticking between the components. A quick service and oil change will generally sort out any choke problems you might be experiencing.