These mowers are the very common sort. They all look the same with different names an different engine covers an pull starts. The common name is victa commando but for parts its the common 160cc full crank engine an carby is g4/lm. With the revs I would say pull carby apart give it a clean and reinstall the throttle cable. With it not shutting off check the two kill wires coming out of the carby the rubber boots might be worn an may not be working. Or even wen reinstallin throttle cable may fix that issue to.
With that grey dial im not to sure as thats on the older mowers it may have something to do with revs maybe but iam not sure on that one.
