Why does my petrol strimmer stop when there is still fuel in the tank?

Your petrol strimmer may stop even with fuel in the tank due to a few reasons such as a clogged fuel filter, a dirty carburetor, or a blocked fuel line, which can restrict the flow of fuel to the engine. Additionally, if the fuel is old or not mixed properly, it can cause poor combustion. Lastly, overheating or a faulty spark plug can also lead to engine shutdowns. Checking these components can help diagnose the issue.