Rollers are all done. I pinched an old hardwood fence post from my son and turned the three rollers on my metal lathe. Not sure what diameter they should be but I settled on 66mm. That looked pretty close to me. I have them soaking in linseed oil at the moment but I'll probably wax them after a while to finish them off.
What problems are you having with the carby? Have you discovered the engine manual elsewhere on this excellent forum?[Linked Image]