I have a semi functioning one here. I bought it, put fuel in and it ran. One day, I can pull it down and take the gasket and diaphragm out - bit apprehensive to do as it works. I will ask down at the mower shop next visit and see if they have any NOS parts for those quoted numbers

Anyone know what the black knob on the carby does?

By the way CM, can you tell me how much the air filter housings are? I have a couple of old stihls which have the same plastic cap and I need 2 or 3