I got it going well with the
original small metal carb, the one in the 2nd photo in the whole post. I notice the amount of air coming in is so important , and I have to get a proper angle rubber for carb and an air filter......
At the moment I am using a piece of sponge jammed in the pipe and a wire through it to stop it getting sucked into carb, which happened...
But happy with result now.
speedy


........................Keep your blades sharp......................