My beast failed mot today. Mot tester said fuel leaking by stop switch. I looked and could see was dripping when running. Does that mean I need new stop switch or the fuel pipe from fuel filter to the pump ?
Undo it, pull it out and have a look first. Its a bit fiddly as there isn't much space to get a spanner round it and turn. I believe there is a seal of some sort underneath, you should not need to replace the whole unit unless the solenoid itself has packed up.