MF, I solved this one after cleaning the carby still no improvement, so I fitted an adjustable plate across the inlet to control the leanness in the carb and it got rid of the hunting. They are a shitty carby and shitty design but a cracking little motor let down by somebody who just got too smart with the carby. The Victa LM carby is just so far superior to this bit of temperamental kit.
