Ok so now I have had maybe some success with these needles. Last night I filed off the pointy end that sits on the float, leaving the groove for the proposed spring clip to sit in if needed, probably filed off 1mm at the maximum. I pulled out a mower this morning and it would not start, been sitting there for a month or so. Tried a dozen time to see if it would start, nothing. I fitted one of the filed back needles and it started first pull. Is this a fix, I don't know? Is it a fluke, I don't know? Will it still work after sitting for a while, I don't know. I now have 9 of these needles I have filed and they will be going in every mower I build to see if this is a permanent fix.
