Thanks Norm,

I've just finished cleaning it. No I didn't need a socket. It only needed firm finger pressure to hold it.

Are these the lobes you cut down? How much do you remove? I'll reassemble the carby and try out the mower first so I can see if the new diaphragm & primer cap fixes the problem. [Linked Image]


I have also bought a cam (CR.03626A) that looks identical except for a pin moulded on the arm opposite the hole for the throttle cable. Is this an updated design? The existing cam part number is: CR03406
[Linked Image]