Recount your rebuilds here!
I think most will say run that 38. For me on my trail ridden bike I like the stock carb jetted right out of the book and it runs perfect and consistant for me always...but most don't have the same experiences as I do with the stock carb. My snow bike and my sand bike both run 39's and work well.
O.ne B.ig A.ss M.istake A.merica