Hi!

I would like to share with the group something I found (maybe not new but its for me)
I've been looking for on the net jets on aftermarket for my F100 and could found it and even better because are original.
The carbs are made by Keihin and found that original Keihin main jets (1001-806) are exactely the same used on my F100, the Keihin jet (slow jet/pilot jet) is the (N424-25B)
I had no interest on needles but maybe you can find it if you may be interested.

These jets are mainely used on Harley Davison bikes!

Google the above references and you'll find it by a fraction of the price that Yamaha sells them, are original just not only brings a sticker saying Yamaha.

I have also been looking for jets for my Yamaha 30D but this is a really hard job because the carbs are made by Nikki / Hitachi and is very hard to find parts (jets) on the aftermarket (at least on the net) just could found the Jet air slow that is exactely the same made by Mikuni (VM22/210)
If you know where to find the main jets on the aftermarket just let me know (the 8mm thread jets seems to be hard to find). Thanks!

Good luck!