Lawn Mower 17 inch self propelled petrol

Self propelled 17 inch cut width Classic Balmoral 17S Atco mower. Condition is between used (working) and parts as there are a couple of things to sort. The engine starts and can propel the mower, but it does not regulate speed properly. I believe the carburettor needs some attention. Also there is a slow leak in the pipe from petrol tank to engine.

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