Yes I still have the sample floats and I have boxes of the original floats, I did notice that there is a slight difference in the floats you sent but I doubt this is going to solve the problem but as you say you didn't encounter this problem.
With the second one today that would not start with the original viton tip I fitted a couple of months ago and after fitting the shortened needle this morning and still not starting, I pulled the carby off, modified it put it back with the shortened needle, same primer cap and float and it started first pull. What solved the problem I can't say. The test now is to leave these 2 mowers sit with a tag on them so they don't get mixed up with the others and leave them sit for a month or so and then see if they will start up without issues
Last edited by NormK; 01/05/19 02:56 PM.