Hey man the hight adjuster segment come up on eBay every now and then I use them with restorations but if I'm going to use the mower I usually use a screw and nut with the thread flattened on each side so it fits in the hight notches . As far as the teeing goes it may have a stripped governor gear or may just need adjusting to factory setting which isn't hard I would post the instructions but they are packed away at the moment I'll see if I've got a carby I can demonstrate on
