May need a service- my mower- same model is doing exactly the same. Hubby has been doing some research on-line & needs to check the engine- you can pick up a new spark plug & service kit for about £20- but there was a choice of 2- so he's going to check the engine number etc to ensure we get the right one. My mower is 7 years old and this is the first time we've had a problem. Good luck
silverscoobyanimal, March 2011