I too have gotten away with using the jets from AM kits, but have never had good results with the needles. I try to use stock brass whenever possible. If you compare the taper of the stock needle, with the AM needle, there is quite a bit of difference. I didn't bother trying to order needles from dealer, as i was pretty sure they were unavailable.
davomoto
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Latest Registry Entry
1965 Honda CP77 — Ulsan Metro City, Rep. Korea
Restored with original parts — Owner: J. Doe