Changed the fuel tap and gave the carby a clean, now the petrol tank tap works but the start/kill lever doesn't turn the mower off, it revs up a bit at the highest setting but for a large part of its movement the revs don't change.I assume that something must have slipped and that the screws need to be re-tightened. Is there anything else I can do?
Thanks Grumpy for your input into the discussion on how to turn the mower off, I have heard the argument you've advanced before and always done this way.
