I surpose here in Wanganui NZ we are a bit spoilt, our 4 shops have VMX riders or supporters. So when it comes to finding parts they do try extremely hard to get the parts. Failing that, they will give you information on the wheres, whos, and whys to get you up and running. The parts guy at the shop I go to regularly gives me Oz phone numbers after a seach of who has got the parts in stock. He will let me go through there old stock as well. I have spent many a Saturday morning with my parts book's in hand seaching away, and they even bring ya a coffee at smoko time. They will let you take parts home to check to see if they will do the job, and even let you use there specialized tools. When I had to do the jetting of the Noguchi, I was given a set of main jets from 190 to 245(just return them when I'm finished), so now I know the main jets to buy without having to buy huge numbers of them. In fact, go to any of our 4 shops here and say you ride vmx and you will be treated like a long lost friend.
Thanks Paragon Yamaha; Keown Honda; Whitelock Suzuki and Joe Lett ltd.