"Drill holes in the rubber (lots and lots of them) all around the bolt with a really long 6 - 8mm drill bit.
Lift the chassis up at the nose, and the bolt should just fall out. Needless to say, you then need to replace the bolt and rubber."
"Hi David, I've got a few sets. I'll have a look tonight and send you some pics. I literally have some sitting in the bin at home right now and the garbo comes Wed. Yours free + the cost of the postage (max $20). I might be able to find a…"
"you need to get that welded before doing CoM. It has broken because of high force. Without the "small" upright welded, Now that force will just be transferred to the other "big" upright, which may give way next. Take the seat out…"
"Greg. Worth pointing that rule out. I made the tool to use on my circuit racing sportscars. Can be handy after a stack of laps behind the pace car only to finish on a red flag with tyres like lamingtons."
"Tried 18psi. Got half of it off. Then I "borrowed" a more experienced cadet driver to do a few laps in my sons kart. The other driver scrubbed the tyres, and gave me a baseline lap time for my son to aim for."